I attended Fajr prayer with the Messenger of Allah ﷺ in Masjid al-Khayf. When he finished praying, he saw two men at the back of the people who had not prayed with him. He said: “Bring them here.” So they were brought to him, trembling. He said: “What kept you from praying with us?” They said: ‘O Messenger of Allah ﷺ we had already prayed in our homes.' He said: “Do not do that. If you have already prayed in your homes, then you come to a masjid in which there is a congregation, then pray with them, and it will be a voluntary prayer for you."  

شَهِدْتُ مَعَ رَسُولِ اللَّهِ ﷺ صَلاَةَ الْفَجْرِ فِي مَسْجِدِ الْخَيْفِ فَلَمَّا قَضَى صَلاَتَهُ إِذَا هُوَ بِرَجُلَيْنِ فِي آخِرِ الْقَوْمِ لَمْ يُصَلِّيَا مَعَهُ قَالَ عَلَىَّ بِهِمَا فَأُتِيَ بِهِمَا تُرْعَدُ فَرَائِصُهُمَا فَقَالَ مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنَا قَالاَ يَا رَسُولَ اللَّهِ إِنَّا قَدْ صَلَّيْنَا فِي رِحَالِنَا قَالَ فَلاَ تَفْعَلاَ إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَتَيْتُمَا مَسْجِدَ جَمَاعَةٍ فَصَلِّيَا مَعَهُمْ فَإِنَّهَا لَكُمَا نَافِلَةٌ  

Yazid prayed along with the Messenger of Allah ﷺ when he was a young boy. When he (the Prophet) had prayed there were two persons (sitting) in the corner of the mosque; they did not pray (along with the Prophet). He called for them. They were brought trembling (before him). He asked: What prevented you from praying along with us? They replied: We have already prayed in our houses. He said: Do not do so. If any of you prays in his house and finds that the imam has not prayed, he should pray along with him; and that will be a supererogatory prayer for him.  

عَنْ أَبِيهِأَنَّهُ صَلَّى مَعَ رَسُولِ اللَّهِ ﷺ وَهُوَ غُلاَمٌ شَابٌّ فَلَمَّا صَلَّى إِذَا رَجُلاَنِ لَمْ يُصَلِّيَا فِي نَاحِيَةِ الْمَسْجِدِ فَدَعَا بِهِمَا فَجِيءَ بِهِمَا تُرْعَدُ فَرَائِصُهُمَا فَقَالَ مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنَا قَالاَ قَدْ صَلَّيْنَا فِي رِحَالِنَا فَقَالَ لاَ تَفْعَلُوا إِذَا صَلَّى أَحَدُكُمْ فِي رَحْلِهِ ثُمَّ أَدْرَكَ الإِمَامَ وَلَمْ يُصَلِّ فَلْيُصَلِّ مَعَهُ فَإِنَّهَا لَهُ نَافِلَةٌ  

"I attended Hajj with the Prophet. I prayed the Subh (Fajr) prayer with him in Masjid AI-Khaif." He said: "When the Prophet finished, he turned (from the Qiblah) and saw two men at the back of the people who had not prayed with him. He said, 'Bring them to me.' So I brought then while they were shuddering with fear. He said: 'What prevented you from praying with us?" They said: 'O Messenger of Allah!' We prayed at our camp.' So he said: 'Do not do that; when you pray in your camp then you come to a Masjid with a congregation, then pray with them. That will be a voluntary prayer for you.'"  

شَهِدْتُ مَعَ النَّبِيِّ ﷺ حَجَّتَهُ فَصَلَّيْتُ مَعَهُ صَلاَةَ الصُّبْحِ فِي مَسْجِدِ الْخَيْفِ قَالَ فَلَمَّا قَضَى صَلاَتَهُ وَانْحَرَفَ إِذَا هُوَ بِرَجُلَيْنِ فِي أُخْرَى الْقَوْمِ لَمْ يُصَلِّيَا مَعَهُ فَقَالَ عَلَىَّ بِهِمَا فَجِيءَ بِهِمَا تُرْعَدُ فَرَائِصُهُمَا فَقَالَ مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنَا فَقَالاَ يَا رَسُولَ اللَّهِ إِنَّا كُنَّا قَدْ صَلَّيْنَا فِي رِحَالِنَا قَالَ فَلاَ تَفْعَلاَ إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَتَيْتُمَا مَسْجِدَ جَمَاعَةٍ فَصَلِّيَا مَعَهُمْ فَإِنَّهَا لَكُمَا نَافِلَةٌ قَالَ وَفِي الْبَابِ عَنْ مِحْجَنٍ الدِّيلِيِّ وَيَزِيدَ بْنِ عَامِرٍ  

I attended Fajr prayer with the Messenger of Allah ﷺ in Masjid al-Khayf. When he finished praying, he saw two men at the back of the people who had not prayed with him. He said: “Bring them here.” So they were brought to him, trembling. He said: “What kept you from praying with us?” They said: ‘O Messenger of Allah ﷺ we had already prayed in our homes.' He said: “Do not do that. If you have already prayed in your homes, then you come to a masjid in which there is a congregation, then pray with them, and it will be a voluntary prayer for you." (Using translation from Nasāʾī 858)   

شَهِدْتُ مَعَ رَسُولِ اللهِ ﷺ حَجَّتَهُ قَالَ فَصَلَّيْتُ مَعَهُ صَلَاةَ الْفَجْرِ فِي مَسْجِدِ الْخَيْفِ فَلَمَّا قَضَى صَلَاتَهُ إِذَا هُوَ بِرَجُلَيْنِ فِي آخِرِ الْمَسْجِدِ لَمْ يُصَلِّيَا مَعَهُ فَقَالَ عَلَيَّ بِهِمَا فَأُتِيَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا قَالَ مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنَا؟ قَالَا يَا رَسُولَ اللهِ كُنَّا قَدْ صَلَّيْنَا فِي رِحَالِنَا قَالَ فَلَا تَفْعَلَا إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَتَيْتُمَا مَسْجِدَ جَمَاعَةٍ فَصَلِّيَا مَعَهُمْ فَإِنَّهُمَا لَكُمَا نَافِلَةٌ وَرُبَّمَا قِيلَ لِهُشَيْمٍ فَلَمَّا قَضَى صَلَاتَهُ يُحَرَّفَ فَيَقُولُ يُحَرَّفَعَنْ مَكَانِهِ  

Yazid prayed along with the Messenger of Allah ﷺ when he was a young boy. When he (the Prophet) had prayed there were two persons (sitting) in the corner of the mosque; they did not pray (along with the Prophet). He called for them. They were brought trembling (before him). He asked: What prevented you from praying along with us? They replied: We have already prayed in our houses. He said: Do not do so. If any of you prays in his house and finds that the imam has not prayed, he should pray along with him; and that will be a supererogatory prayer for him. (Using translation from Abū Dāʾūd 575)   

أَنَّهُ صَلَّى مَعَ رَسُولِ اللهِ ﷺ صَلَاةَ الصُّبْحِ بِمِنًى وَهُوَ غُلَامٌ شَابٌّ فَلَمَّا صَلَّى رَسُولُ اللهِ ﷺ إِذَا هُوَ بِرَجُلَيْنِ لَمْ يُصَلِّيَا فَدَعَا بِهِمَا فَجِيءَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا فَقَالَ لَهُمَا مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنَا؟ قَالَا قَدْ صَلَّيْنَا فِي رِحَالِنَا قَالَ فَلَا تَفْعَلَا إِذَا صَلَّيْتُمْ فِي رِحَالِكُمْ ثُمَّ أَدْرَكْتُمُ الْإِمَامَ لَمْ يُصَلِّ فَصَلِّيَا مَعَهُ فَهِيَ لَكُمْ نَافِلَةٌ  

[Machine] I prayed with the Messenger of Allah ﷺ in Mina. When he finished the prayer, he noticed two men at the back of the people. He called them and said, "What prevented you from praying with the people?" They said, "O Messenger of Allah, we already prayed in our tents." He said, "Do not do so if any of you prays in his tent and then catches up with the congregation prayer, let him join them, as it will be a voluntary prayer for him."  

صَلَّيْتُ مَعَ رَسُولِ اللَّهِ ﷺ بِمِنًى فَلَمَّا سَلَّمَ أَبْصَرَ رَجُلَيْنِ فِي أَوَاخِرِ النَّاسِ فَدَعَاهُمَا فَقَالَ «مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَ النَّاسِ؟» فَقَالَا يَا رَسُولَ اللَّهِ صَلَّيْنَا فِي الرِّحَالِ قَالَ «فَلَا تَفْعَلَا إِذَا صَلَّى أَحَدُكُمْ فِي رَحْلِهِ ثُمَّ أَدْرَكَ الصَّلَاةَ مَعَ الْإِمَامِ فَلْيُصَلِّهَا مَعَهُ فَإِنَّهَا لَهُ نَافِلَةٌ»  

[Machine] The Prophet ﷺ prayed, then when he finished his prayer, he saw two men behind the people. He commanded them to be brought forward and it thundered upon their arrival. He said to them, "What prevented you from praying with us?" They said, "O Prophet of Allah, we prayed in our journey." Then they turned towards each other and the Prophet ﷺ said, "If you have already prayed in your journey and then you catch up with the congregational prayer, then pray, for it will be considered as a voluntary prayer for you."  

صَلَّى النَّبِيُّ ﷺ صَلَاةً فَلَمَّا قَضَى صَلَاتَهُ إِذَا هُوَ بِرَجُلَيْنِ فِي مُؤَخَّرِ النَّاسِ فَأَمَرَ فَجِيءَ بِهِمَا تُرْعَدُ فَرَائِصُهُمَا فَقَالَ لَهُمَا «مَا حَمَلَكُمَا عَلَى أَنْ لَا تُصَلِّيَا مَعَنْا» قَالَا يَا نَبِيَّ اللَّهِ صَلَّيْنَا فِي رِحَالِنَا ثُمَّ أَقْبَلْنَا فَقَالَ النَّبِيُّ ﷺ «إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَدْرَكْتُمَا الصَّلَاةَ فَصَلِّيَا فَإِنَّهَا لَكُمَا نَافِلَةٌ»  

I attended Fajr prayer with the Messenger of Allah ﷺ in Masjid al-Khayf. When he finished praying, he saw two men at the back of the people who had not prayed with him. He said: “Bring them here.” So they were brought to him, trembling. He said: “What kept you from praying with us?” They said: ‘O Messenger of Allah ﷺ we had already prayed in our homes.' He said: “Do not do that. If you have already prayed in your homes, then you come to a masjid in which there is a congregation, then pray with them, and it will be a voluntary prayer for you." (Using translation from Nasāʾī 858)   

شَهِدْتُ مَعَ رَسُولِ اللَّهِ ﷺ حَجَّتَهُ فَصَلَّيْتُ مَعَهُ صَلَاةَ الصُّبْحِ فِي مَسْجِدِ الْخَيْفِ مِنْ مِنًى فَلَمَّا قَضَى صَلَاتَهُ إِذَا رَجُلَانِ فِي آخِرِ النَّاسِ لَمْ يُصَلِّيَا فَأُتِيَ بِهِمَا تُرْعَدُ فَرَائِصُهُمَا فَقَالَ «مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنْا؟ » قَالَا يَا رَسُولَ اللَّهِ كُنَّا قَدْ صَلَّيْنَا فِي رِحَالِنَا قَالَ «فَلَا تَفْعَلَا إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَتَيْتُمَا مَسْجِدَ جَمَاعَةٍ فَصَلِّيَا مَعَهُمْ فَإِنَّهَا لَكُمَا نَافِلَةٌ»  

[Machine] The Prophet ﷺ prayed a prayer, then when he finished his prayer, he found two men behind the people. So he ordered them and they came trembling. Their garments were shaking. He said, "What caused both of you not to pray with us?" They said, "O Messenger of Allah, we already prayed in our tents. Then we came here." The Prophet ﷺ said, "If you both pray in your tents and then catch up with the congregation, then pray, for it will be an additional (optional) prayer for you."  

صَلَّى النَّبِيُّ ﷺ صَلَاةً فَلَمَّا قَضَى صَلَاتَهُ إِذَا هُو بِرَجُلَيْنِ فِي مُؤَخَّرِ النَّاسِ فَأَمَرَ بِهِمَا فَجِيءَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا فَقَالَ مَا حَمَلَكُمَا عَلَى أَنْ لَمْ تُصَلِّيَا مَعَنَا قَالَا يَا نَبِيَّ اللهِ صَلَّيْنَا فِي الرِّحَالِ ثُمَّ أَقْبَلْنَا فَقَالَ النَّبِيُّ ﷺ إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَدْرَكْتُمَا الصَّلَاةَ فَصَلِّيَا فَإِنَّهَا لَكُمَا نَافِلَةٌ  

[Machine] We prayed with the Messenger of Allah ﷺ the Fajr prayer in Mina, when suddenly two men at the back of the mosque did not pray. The Messenger then called for them, and they were brought to him trembling. He asked them, "What prevents you from praying with us?" They replied, "O Messenger of Allah, we have already prayed in our tents." He said, "Do not do that. If you have already prayed in your tents and then you come to the imam and he has not prayed, then pray with him, for it will be an extra prayer for you."  

صَلَّيْنَا مَعَ رَسُولِ اللهِ ﷺ الصُّبْحَ بِمِنًى فَإِذَا رَجُلَانِ فِي مُؤَخَّرِ الْمَسْجِدِ لَمْ يُصَلِّيَا فَدَعَا بِهِمَا فَجِيءَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا فَقَالَ مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنَا قَالَا يَا رَسُولَ اللهِ إِنَّا قَدْ صَلَّيْنَا فِي رِحَالِنَا قَالَ فَلَا تَفْعَلَا إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَتَيْتُمَا الْإِمَامَ وَلَمْ يُصَلِّ فَصَلَّيَا مَعَهُ فَإِنَّهَا لَكُمَا نَافِلَةٌ  

[Machine] He was with the Prophet ﷺ during the Farewell Pilgrimage. He prayed the Fajr prayer in the Mosque of al-Khaif. When he had finished his prayer, he saw two men at the back of the mosque. They were brought to him by thunder. He said, "Why did you not pray with us?" One of them said, "O Messenger of Allah, we prayed while traveling, then we came while you were praying, so we sat down." The Messenger of Allah ﷺ said, "When one of you prays in his riding mount and then comes while the Imam is praying, let him pray with him, for it will be a voluntary prayer for him.  

أَنَّهُ كَانَ مَعَ النَّبِيِّ ﷺ فِي حَجَّةِ الْوَدَاعِ فَصَلَّى الْفَجْرَ فِي مَسْجِدِ الْخَيْفِ فَلَمَّا قَضَى صَلَاتَهُ إِذَا رَجُلَانِ فِي مُؤَخَّرِ الْمَسْجِدِ فَأُتِيَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا قَالَ مَا لَكُمَا لَمْ تُصَلِّيَا مَعَنَا فَقَالَ يَا رَسُولَ اللهِ صَلَّيْنَا فِي رِحَالِنَا ثُمَّ جِئْنَا وَأَنْتَ تُصَلِّي فَجَلَسْنَا فَقَالَ رَسُولُ اللهِ ﷺ إِذَا صَلَّى أَحَدُكُم فِي رَحْلِهِ ثُمَّ جَاءَ وَالْإِمَامُ يُصَلِّي فَلْيُصَلِّ مَعَهُ فَإِنَّهَا لَه نَافِلَةٌ  

[Machine] "I prayed with the Messenger of Allah ﷺ in the morning in the Mosque of al-Khayf in Mina. When he finished, he faced the people and saw two men in the back of the crowd who did not pray with the people. He said, 'Bring these two men to me.' They were brought to him trembling. He asked them, 'What prevented you from praying with the people?' They said, 'O Messenger of Allah, we had already prayed in our tents.' He said, 'Do not do so when one of you has prayed in his tent and then catches the congregational prayer. He should pray it with them, for it will be a voluntary prayer for him.'"  

صَلَّيْتُ مَعَ رَسُولِ اللهِ ﷺ الْغَدَاةَ بِمِنًى فِي مَسْجِدِ الْخَيْفِ فَلَمَّا سَلَّمَ اسْتَقْبَلَ النَّاسَ بِوَجْهِهِ فَإِذَا هُو بِرَجُلَيْنِ فِي أُخْرَيَاتِ النَّاسِ لَمْ يُصَلِّيَا مَعَ النَّاسِ فَقَالَ ائْتُونِي بِهَذَيْنِ الرَّجُلَيْنِ فَأُتِيَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا فَقَالَ مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَ النَّاسِ قَالَا يَا رَسُولَ اللهِ قَد كُنَّا صَلَّيْنَا فِي الرِّحَالِ قَالَ لَا تَفْعَلَا إِذَا صَلَّى أَحَدُكُمْ فِي رَحْلِهِ وَأَدْرَكَ الصَّلَاةَ مَعَ النَّاسِ فَلْيُصَلِّهَا مَعَهُمْ فَإِنَّهَا لَه نَافِلَةٌ  

[Machine] I witnessed the Prophet ﷺ praying in the Mosque of Khayf. After he finished the prayer, he saw two men sitting aside and shivering because of the cold. The Prophet ﷺ asked them, "What prevented you from joining the prayer?" They replied, "O Messenger of Allah, we prayed in our traveling clothes." He said, "When you pray in your traveling clothes and catch up with the people in prayer, then pray with them. And the prayer that you prayed in your traveling clothes is the obligatory prayer."  

شَهِدْتُ مَعَ رَسُولِ اللهِ ﷺ الصَّلَاةَ فِي مَسْجِدِ الْخَيْفِ فَلَمَّا قَضَى الصَّلَاةَ إِذَا هُو بِرَجُلَيْنِ جَالِسَيْنِ نَاحِيَةً فَأُتِيَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا فَقَالَ النَّبِيُّ ﷺ مَا مَنَعَكُمَا مِنَ الصَّلَاةِ قَالَا يَا رَسُولَ اللهِ صَلَّيْنَا فِي رِحَالِنَا قَالَ إِذَا صَلَّيْتُمْ فِي رِحَالِكُمْ وَأَدْرَكْتُمُ الصَّلَاةَ مَعَ النَّاسِ فَصَلُّوهَا مَعَهُمْ وَالَّذِي صَلَّيْتُمْ فِي رِحَالِكُمْ هِي الْفَرِيضَةُ  

[Machine] I performed the farewell Hajj with the Messenger of Allah ﷺ , and I prayed the morning prayer with him in Mina. When he finished his prayer, he saw two men behind the people who had not prayed with them. He said, "Bring those two men to me." They were brought to him trembling. He asked them, "Did you not pray with us?" They said, "O Messenger of Allah, we had already prayed in our camps, and we thought that we would not be able to catch the prayer." He said, "Do not do that when you have already prayed in your camps, and then if you catch the prayer, pray it, and it will be a voluntary prayer for you." One of them said, "Ask Allah to forgive me, O Messenger of Allah." He said, "O Allah, forgive him."  

حَجَجْتُ مَعَ رَسُولِ اللهِ ﷺ حَجَّةَ الْوَدَاعِ فَصَلَّيْتُ مَعَهُ صَلَاةَ الْغَدَاةِ بِمِنًى فَلَمَّا فَرَغَ مِنْ صَلَاتِهِ رَأَى رَجُلَيْنِ خَلْفَ النَّاسِ لَمْ يُصَلِّيَا مَعَ النَّاسِ فَقَالَ عَلَيَّ بِالرَّجُلَيْنِ فَجِيءَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا فَقَالَ أَلَا صَلَّيْتُمَا مَعَنَا فَقَالَا يَا رَسُولَ اللهِ إِنَّا كُنَّا صَلَّيْنَا فِي رِحَالِنَا وَظَنَنَّا أَنَا لَا نُدْرِكُ الصَّلَاةَ قَالَ فَلَا تَفْعَلَا إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَدْرَكْتُمَا الصَّلَاةَ فَصَلِّيَا فَتَكُونُ لَكُمَا نَافِلَةً فَقَالَ أَحَدُهُمَا اسْتَغْفِرْ لِي يَا رَسُولَ اللهِ فَقَالَ اللهُمَّ اغْفِرْ لَهُ  

I attended Fajr prayer with the Messenger of Allah ﷺ in Masjid al-Khayf. When he finished praying, he saw two men at the back of the people who had not prayed with him. He said: “Bring them here.” So they were brought to him, trembling. He said: “What kept you from praying with us?” They said: ‘O Messenger of Allah ﷺ we had already prayed in our homes.' He said: “Do not do that. If you have already prayed in your homes, then you come to a masjid in which there is a congregation, then pray with them, and it will be a voluntary prayer for you." (Using translation from Nasāʾī 858)  

شَهِدْتُ مَعَ رَسُولِ اللهِ ﷺ صَلَاةَ الْفَجْرِ فِي مَسْجِدِ الْخَيْفِ فَلَمَّا قَضَى صَلَاتَهُ إِذَا هُوَ بِرَجُلَيْنِ فِي آخِرِ الْقَوْمِ لَمْ يُصَلِّيَا مَعَهُ فَقَالَ «عَلَيَّ بِهِمَا» فَأُتِيَ بِهِمَا تُرْعَدُ فَرَائِصُهُمَا فَقَالَ «مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنَا؟» قَالَا يَا رَسُولَ اللهِ إِنَّا قَدْ صَلَّيْنَا فِي رِحَالِنَا قَالَ «فَلَا تَفْعَلَا إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَتَيْتُمَا مَسْجِدَ جَمَاعَةٍ فَصَلَّيَا مَعَهُمْ فَإِنَّهَا لَكُمْ نَافِلَةٌ»  

[Machine] "We prayed the Fajr prayer with the Prophet ﷺ in Mina, and then two men came and stood discreetly. The Prophet ﷺ ordered them to be brought forward, and they presented themselves with their turbans raised high. He asked them, 'What prevented you from praying with the people? Are you Muslims?' They replied, 'Yes, O Messenger of Allah, we had already prayed at our campsite.' He said to them, 'If you have already prayed at your campsite and then come to join the imam, then pray with him, as your prayer will be considered a voluntary prayer.'"  

صَلَّيْنَا مَعَ النَّبِيِّ ﷺ الْفَجْرَ بِمِنًى فَجَاءَ رَجُلَانِ حَتَّى وَقَفَا عَلَى رَوَاحِلِهِمَا فَأَمَرَ بِهِمَا النَّبِيُّ ﷺ فَجِيءَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا فَقَالَ لَهُمَا مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَ النَّاسِ؟ أَلَسْتُمَا مُسْلِمَيْنِ؟ قَالَا بَلَى يَا رَسُولَ اللهِ إِنَّا كُنَّا صَلَّيْنَا فِي رِحَالِنَا فَقَالَ لَهُمَا إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَتَيْتُمَا الْإِمَامَ فَصَلَّيَا مَعَهُ فَإِنَّهُمَا لَكُمَا نَافِلَةٌ  

I attended Fajr prayer with the Messenger of Allah ﷺ in Masjid al-Khayf. When he finished praying, he saw two men at the back of the people who had not prayed with him. He said: “Bring them here.” So they were brought to him, trembling. He said: “What kept you from praying with us?” They said: ‘O Messenger of Allah ﷺ we had already prayed in our homes.' He said: “Do not do that. If you have already prayed in your homes, then you come to a masjid in which there is a congregation, then pray with them, and it will be a voluntary prayer for you." (Using translation from Nasāʾī 858)   

شَهِدْتُ مَعَ النَّبِيِّ ﷺ حَجَّتَهُ فَصَلَّيْتُ مَعَهُ صَلَاةَ الْفَجْرِ فِي مَسْجِدِ الْخَيْفِ قَالَ فَلَمَّا قَضَى صَلَاتَهُ وَانْحَرَفَ فَإِذَا هُوَ بِرَجُلَيْنِ فِي أُخْرَيَاتِ الْقَوْمِ لَمْ يُصَلِّيَا مَعَهُ قَالَ عَلَيَّ بِهِمَا فَأُتِيَ بِهِمَا تَرْعَدُ فَرَائِصُهُمَا قَالَ مَا مَنَعَكُمَا أَنْ تُصَلِّيَا مَعَنَا؟ قَالَا يَا رَسُولَ اللهِ كُنَّا قَدْ صَلَّيْنَا فِي رِحَالِنَا قَالَ فَلَا تَفْعَلَا إِذَا صَلَّيْتُمَا فِي رِحَالِكُمَا ثُمَّ أَتَيْتُمَا مَسْجِدَ جَمَاعَةٍ فَصَلِّيَا مَعَهُمْ فَإِنَّهُمَا لَكُمَا نَافِلَةٌ  

" صَلَّيْتُ مَعَ رَسُولِ اللهِ ﷺ الفَجْرَ، فَلَمَّا سَلَّمَ انْحَرفَ فَرَأى رَجُلَيْنِ مِنْ وَرَاءِ النَّاسِ فَدَعَاهُمْا فَجِئ بِهِما ترعدُ فَرَائِصُهُما فَقَالَ: مَا مَنَعكُمَا أَنْ تُصَلِّيا مَعَ النَّاسِ؟ قَالَا: يَا رَسُولَ اللهِ صَلَّيْنا فِى رِحَالِنَا، قَالَ: فَلَا تَفْعَلَا، إِذا صَلَّى أَحَدُكُمْ فِى رَحْلِهِ ثُمَ أدْرَكَ الصلاةَ مَعَ الإِمَام فَليُصَلِّهَا مَعَهُ فَإِنَهَا لَهُ نَافِلَة".