The Prayer of Fear, Pursuit, Encounter, and Competition
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 63
وَ رَوَى زُرَارَةُ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ أَنَّهُ قَالَ: «اَلَّذِي يَخَافُ اَللُّصُوصَ وَ اَلسَّبُعَ يُصَلِّي صَلاَةَ اَلْمُوَاقَفَةِ إِيمَاءً عَلَى دَابَّتِهِ» قَالَ قُلْتُ أَ رَأَيْتَ إِنْ لَمْ يَكُنِ اَلْمُوَاقِفُ عَلَى وُضُوءٍ كَيْفَ يَصْنَعُ وَ لاَ يَقْدِرُ عَلَى اَلنُّزُولِ قَالَ «يَتَيَمَّمُ مِنْ لِبْدِ دَابَّتِهِ أَوْ سَرْجِهِ أَوْ مَعْرَفَةِ دَابَّتِهِ فَإِنَّ فِيهَا غُبَاراً وَ يُصَلِّي وَ يَجْعَلُ اَلسُّجُودَ أَخْفَضَ مِنَ اَلرُّكُوعِ وَ لاَ يَدُورُ إِلَى اَلْقِبْلَةِ وَ لَكِنْ أَيْنَمَا دَارَتْ دَابَّتُهُ غَيْرَ أَنَّهُ يَسْتَقْبِلُ اَلْقِبْلَةَ بِأَوَّلِ تَكْبِيرَةٍ حِينَ يَتَوَجَّهُ.
Zurarah narrated from Imam Muhammad ibn Ali Al-Baqir عليه السلام that He said: "One who fears robbers or a wild beast should perform the prayer of a stopped traveler using gestures while on their mount." I (Zurarah) asked: "What if the person does not have wudu (ablution) and cannot dismount? What should they do?" Imam عليه السلام said: "They should perform tayammum (dry ablution) using the saddlecloth, saddle, or the cover of their mount, as it contains dust, and then pray, making the gesture for prostration lower than that of bowing. They do not need to turn to face the Qiblah; rather, they should face the Qiblah for the initial takbir (opening declaration) and then continue as the mount moves."
- Ṣaḥīḥ al-Faqīh, p. 68