"I said to 'Umar bin Al-Khattab: 'There is no sin on you if you shorten salah and if you fear that the disbelievers may put you in trial (attack you). But now the people are safe.' 'Umar said: 'I wondered the same thing, so I asked the Messenger of Allah ﷺ about that and he said: This is a favor from Allah (SWT) to you, so accept His favor."  

أَنْ يَفْتِنَكُمُ الَّذِينَ كَفَرُوا } فَقَدْ أَمِنَ النَّاسُ فَقَالَ عُمَرُ ؓ عَجِبْتُ مِمَّا عَجِبْتَ مِنْهُ فَسَأَلْتُ رَسُولَ اللَّهِ ﷺ عَنْ ذَلِكَ فَقَالَ صَدَقَةٌ تَصَدَّقَ اللَّهُ بِهَا عَلَيْكُمْ فَاقْبَلُوا صَدَقَتَهُ  

He said to 'Abdullah bin 'Umar: "We find (mention of) prayer when one is at home (i.e., not traveling) and prayer at times of fear in the Qur'an, but we do not find any mention in the Qur'an of prayer when traveling. Ibn Umar said to him: 'O son of my brother, Allah (SWT) send Muhammad ﷺ to us when we did not know anything, and all we should do is to do that which we saw Muhammad ﷺ doing.'"  

لَهُ ابْنُ عُمَرَ يَا ابْنَ أَخِي إِنَّ اللَّهَ ﷻ بَعَثَ إِلَيْنَا مُحَمَّدًا ﷺ وَلاَ نَعْلَمُ شَيْئًا وَإِنَّمَا نَفْعَلُ كَمَا رَأَيْنَا مُحَمَّدًا ﷺ يَفْعَلُ  

The Messenger of Allah ﷺ set out from Makkah to Al-Madinah, fearing nothing but the Lord of the worlds, and praying two rak'ahs.  

أَنَّ رَسُولَ اللَّهِ ﷺ خَرَجَ مِنْ مَكَّةَ إِلَى الْمَدِينَةِ لاَ يَخَافُ إِلاَّ رَبَّ الْعَالَمِينَ يُصَلِّي رَكْعَتَيْنِ  

"We used to travel with the Messenger of Allah ﷺ between Makkah and Al-Madinah, fearing nothing but Allah, the Mighty and Sublime, and praying two rak'ahs."  

كُنَّا نَسِيرُ مَعَ رَسُولِ اللَّهِ ﷺ بَيْنَ مَكَّةَ وَالْمَدِينَةِ لاَ نَخَافُ إِلاَّ اللَّهَ ﷻ نُصَلِّي رَكْعَتَيْنِ  

"I saw 'Umar bin Al-Khattab praying two rak'ahs in Dhul-Hulaifah and I asked him about that. He said: 'I am simply doing that which I saw the Messenger of Allah ﷺ doing.'"  

إِنَّمَا أَفْعَلُ كَمَا رَأَيْتُ رَسُولَ اللَّهِ ﷺ يَفْعَلُ  

"I went out with the Messenger of Allah ﷺ from Al-Madinah to Mekkah, and he continued to shorten his prayers, and he stayed there for ten days."  

خَرَجْتُ مَعَ رَسُولِ اللَّهِ ﷺ مِنَ الْمَدِينَةِ إِلَى مَكَّةَ فَلَمْ يَزَلْ يَقْصُرُ حَتَّى رَجَعَ فَأَقَامَ بِهَا عَشْرًا  

"I prayed two rak'ahs with the Messenger of Allah ﷺ on a journey, and two rak'ahs with Abu Bakr, and two rak'ahs with 'Umar, may Allah (SWT) be pleased with them both."  

صَلَّيْتُ مَعَ رَسُولِ اللَّهِ ﷺ فِي السَّفَرِ رَكْعَتَيْنِ وَمَعَ أَبِي بَكْرٍ رَكْعَتَيْنِ وَمَعَ عُمَرَ رَكْعَتَيْنِ ؓ  

"The prayer for jumu'ah is two rak'ahs, and for Al-Fitr is two rak'ahs, and for An-Nahr is two rak'ahs, and for traveling is two rak'ahs, complete and not shortened, on the tongue of the Prophet ﷺ."  

صَلاَةُ الْجُمُعَةِ رَكْعَتَانِ وَالْفِطْرِ رَكْعَتَانِ وَالنَّحْرِ رَكْعَتَانِ وَالسَّفَرِ رَكْعَتَانِ تَمَامٌ غَيْرُ قَصْرٍ عَلَى لِسَانِ النَّبِيِّ ﷺ  

"The prayer of the resident was enjoined on the tongue of your Prophet ﷺ, four (rak'ahs), and the prayer of the traveler is two rak'ahs, and the prayer of fear is one rak'ah."  

فُرِضَتْ صَلاَةُ الْحَضَرِ عَلَى لِسَانِ نَبِيِّكُمْ ﷺ أَرْبَعًا وَصَلاَةُ السَّفَرِ رَكْعَتَيْنِ وَصَلاَةُ الْخَوْفِ رَكْعَةً  

"Allah, the Mighty and Sublime, enjoined the prayer on the tongue of your Prophet ﷺ: While a resident four (rak'ahs), while traveling two, and at times of fear one."  

إِنَّ اللَّهَ ﷻ فَرَضَ الصَّلاَةَ عَلَى لِسَانِ نَبِيِّكُمْ ﷺ فِي الْحَضَرِ أَرْبَعًا وَفِي السَّفَرِ رَكْعَتَيْنِ وَفِي الْخَوْفِ رَكْعَةً