12.5 The chaser and the chased can offer Salat (prayer) while riding , and by signs
١٢۔٥ بَابُ صَلاَةِ الطَّالِبِ وَالْمَطْلُوبِ رَاكِبًا وَإِيمَاءً
[Machine] And Al-Walid said, "I mentioned to Al-Awza'i regarding the prayer of Shurahbil ibn Al-Simt and his companions on the back of the beast, so he said, 'This is the custom among us when there is fear of being besieged.' Al-Walid then referred to the saying of the Prophet (pbuh): 'No one should pray Al-Asr except in the tribe of Qurayzah.'"
وَقَالَ الْوَلِيدُ ذَكَرْتُ لِلأَوْزَاعِيِّ صَلاَةَ شُرَحْبِيلَ بْنِ السِّمْطِ وَأَصْحَابِهِ عَلَى ظَهْرِ الدَّابَّةِ فَقَالَ كَذَلِكَ الأَمْرُ عِنْدَنَا إِذَا تُخُوِّفَ الْفَوْتُ، وَاحْتَجَّ الْوَلِيدُ بِقَوْلِ النَّبِيِّ ﷺ: «لاَ يُصَلِّيَنَّ أَحَدٌ الْعَصْرَ إِلاَّ فِي بَنِي قُرَيْظَةَ».