[Machine] I heard from the Messenger of Allah or one of his companions, "When a man is uncertain about his prayer, what should he do?" He said, "While in this state, Abdullah ibn Awf approached and asked, 'Who are you two?'" Umar said, "I asked this young man if he had heard from the Messenger of Allah or any of his companions, what should one do when uncertain about their prayer?" Abdullah ibn Awf said, "I heard the Messenger of Allah say, 'If one of you is uncertain about their prayer and does not know whether they have prayed one or two (units), then let them make it one. And if they do not know whether they have prayed two or three, then let them make it two. And if they do not know whether they have prayed three or four, then let them make it three. Then let them prostrate when they finish their prayer while seated before they give the salutations with two prostrations.'"  

سَمِعْتَ مِنْ رَسُولِ اللهِ ﷺ أَوْ مِنْ أَحَدٍ مِنْ أَصْحَابِهِ إِذَا شَكَّ الرَّجُلُ فِي صَلاتِهِ مَاذَا يَصْنَعُ؟ قَالَ فَبَيْنَا هُوَ كَذَلِكَ إِذِ اقْبَلَ عَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ فَقَالَ فِيمَ أَنْتُمَا؟فَقَالَ عُمَرُ سَأَلْتُ هَذَا الْغُلامَ هَلْ سَمِعَ مِنْ رَسُولِ اللهِ ﷺ أَوْ أَحَدٍ مِنْ أَصْحَابِهِ إِذَا شَكَّ الرَّجُلُ فِي صَلاتِهِ مَاذَا يَصْنَعُ؟ فَقَالَ عَبْدُ الرَّحْمَنِ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ إِذَا شَكَّ أَحَدُكُمْ فِي صَلاتِهِ فَلَمْ يَدْرِ أَوَاحِدَةً صَلَّى أَمْ ثِنْتَيْنِ؟ فَلْيَجْعَلْهَا وَاحِدَةً وَإِذَا لَمْ يَدْرِ ثِنْتَيْنِ صَلَّى أَمْ ثَلاثًا؟ فَلْيَجْعَلْهَا ثِنْتَيْنِ وَإِذَا لَمْ يَدْرِ أَثَلاثًا صَلَّى أَمِ ارْبَعًا؟ فَلْيَجْعَلْهَا ثَلاثًا ثُمَّ يَسْجُدِ اذَا فَرَغَ مِنْ صَلاتِهِ وَهُوَ جَالِسٌ قَبْلَ أَنْ يُسَلِّمَ سَجْدَتَيْنِ  

[Machine] The Messenger of Allah ﷺ said: "If one of you has doubts about his prayer, then if he doubts between one and two, let him take them as one. And if he doubts between two and three, let him take them as two. And if he doubts between three and four, let him take them as three, until the uncertainty lies in the extra (rak'ah). Then he should make two prostrations before he says the Salam." Muhammad ibn Ishaq said: "Husayn ibn Abdullah asked me, 'Did he narrate this to you?' I said, 'No.' He said, 'But he informed me that Kurayb, the freed slave of Ibn Abbas, narrated to him from Ibn Abbas, who said, 'I sat with Umar ibn al-Khattab and he said, 'O Ibn Abbas, if a person is confused in his prayer and does not know whether he has added or missed something, what should he do?' I said, 'By Allah, O Amir al-Mu'minin (Commander of the Faithful), I do not know anything about that.' Umar said, 'By Allah, I do not know either.' While we were discussing this, Abd al-Rahman ibn Awf came and said, 'What are you two talking about?' Umar said, 'We were discussing a man who has doubts about his prayer and what he should do.' Abd al-Rahman said, 'I heard the Messenger of Allah ﷺ say this.'"  

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا صَلَّى أَحَدُكُمْ فَشَكَّ فِي صَلاتِهِ فَإِنْ شَكَّ فِي الْوَاحِدَةِ وَالثِّنْتَيْنِ فَلْيَجْعَلْهُمَا وَاحِدَةً وَإِنْ شَكَّ فِي الثِّنْتَيْنِ وَالثَّلاثِ فَلْيَجْعَلْهُمَا ثِنْتَيْنِ وَإِنْ شَكَّ فِي الثَّلاثِ وَالْأَرْبَعِ فَلْيَجْعَلْهُمَا ثَلاثًا حَتَّى يَكُونَ الْوَهْمُ فِي الزِّيَادَةِ ثُمَّ يَسْجُدْ سَجْدَتَيْنِ قَبْلَ أَنْ يُسَلِّمَ ثُمَّ يُسَلِّمْ قَالَ مُحَمَّدُ بْنُ إِسْحَاقَ وَقَالَ لِي حُسَيْنُ بْنُ عَبْدِ اللهِ هَلِ أسْنَدَهُ لَكَ؟ فَقُلْتُ لَا فَقَالَ لَكِنَّهُ حَدَّثَنِي أَنَّ كُرَيْبًا مَوْلَى ابْنِ عَبَّاسٍ حَدَّثَهُ عَنِابْنِ عَبَّاسٍ قَالَ جَلَسْتُ إِلَى عُمَرَ بْنِ الْخَطَّابِ فَقَالَ يَا ابْنَ عَبَّاسٍ إِذَا اشْتَبَهَ عَلَى الرَّجُلِ فِي صَلاتِهِ فَلَمْ يَدْرِ أَزَادَ أَمْ نَقَصَ؟ قُلْتُ وَاللهِ يَا أَمِيرَ الْمُؤْمِنِينَ مَا أَدْرِي مَا سَمِعْتُ فِي ذَلِكَ شَيْئًا فَقَالَ عُمَرُ وَاللهِ مَا أَدْرِي قَالَ فَبَيْنَا نَحْنُ عَلَى ذَلِكَ إِذْ جَاءَ عَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ فَقَالَ مَا هَذَا الَّذِي تَذَاكَرَانِ؟ فَقَالَ لَهُ عُمَرُ ذَكَرْنَا الرَّجُلَ يَشُكُّ فِي صَلاتِهِ كَيْفَ يَصْنَعُ فَقَالَ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ هَذَا الْحَدِيثَ  

[Machine] I sat with Umar bin Al-Khattab, and he said: "O Ibn Abbas, have you heard from the Prophet ﷺ about a person who forgets their prayer and does not know whether they increased or decreased in it?" I said: "And have you heard anything about it, O Amir al-Mu'minin, from the Messenger of Allah ﷺ ?" He said: "No, by Allah, I have not heard anything from him regarding it, nor have I asked him about it. But when Abdur-Rahman bin Awf came, Umar informed him about it. And Abdur-Rahman said: 'But I have heard this from the Prophet ﷺ .' Umar said: 'Then you have the knowledge that we were seeking, so what did you hear?' Abdur-Rahman said: 'I heard the Prophet ﷺ say: If any one of you is in doubt about his prayer, then he should consider it as one unit (rak'ah) and two units (rak'ah), and if he is in doubt about two units (rak'ah) or three, then he should consider it as two units (rak'ah), and if he is in doubt about three or four, then he should consider it as three units (rak'ah), until the doubt concerning the addition is removed, and he should prostrate twice before he gives the Salam, then he should give the Salam, and this is its meaning.'"  

جَلَسْتُ إِلَى عُمَرَ بْنِ الْخَطَّابِ ؓ فَقَالَ يَا ابْنَ عَبَّاسٍ هَلْ سَمِعْتَ مِنَ النَّبِيِّ ﷺ فِي الرَّجُلِ إِذَا نَسِيَ صَلَاتَهَ فَلَمْ يَدْرِ أَزَادَ أَمْ نَقَصَ مَا أَمَرَ بِهِ فِيهِ؟ قُلْتُ وَمَا سَمِعْتَ أَنْتَ يَا أَمِيرَ الْمُؤْمِنِينِ مِنْ رَسُولِ اللهِ ﷺ شَيْئًا فِي ذَلِكَ؟ قَالَ لَا وَاللهِ مَا سَمِعْتُ مِنْهُ فِيهِ شَيْئًا وَلَا سَأَلْتُ عَنْهُ إِذْ جَاءَ عَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ فَقَالَ فِيمَا أَنْتُمَا؟ فَأَخْبَرَهُ عُمَرُ فَقَالَ سَأَلْتُ هَذَا الْفَتَى عَنْ كَذَا وَكَذَا فَلَمْ أَجِدْ عِنْدَهُ عِلْمًا قَالَ عَبْدُ الرَّحْمَنِ لَكِنْ عِنْدِي لَقَدْ سَمِعْتُ ذَلِكَ مِنَ النَّبِيِّ ﷺ فَقَالَ عُمَرُ فَأَنْتَ عِنْدَنَا الْعَدْلُ الرِّضَا فَمَاذَا سَمِعْتَ؟ قَالَ سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ إِذَا شَكَّ أَحَدُكُمْ فِي صَلَاتِهِ فَشَكَّ فِي الْوَاحِدَةِ وَالِثْنَتَيْنِ فَلْيَجْعَلْهُمَا وَاحِدَةً وَإِذَا شَكَّ فِي الِاثْنَتَيْنِ وَالثَّلَاثِ فَلْيَجْعَلْهَا اثْنَتَيْنِ وَإِذَا شَكَّ فِي الثَّلَاثِ وَالْأَرْبَعِ فَلْيَجْعَلْهَا ثَلَاثًا حَتَّى يَكُونَ الْوَهْمُ فِي الزِّيَادَةِ يَسْجُدُ سَجْدَتَيْنِ قَبْلَ أَنْ يُسَلِّمَ ثُمَّ يُسَلِّمُ وَبِمَعْنَاهُ