Al-Kāfi - The Book of Prayer

Chapter: Performing Optional Salah (Prayer) on a Journey َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َانَ عَنْ سَعْدِ بْنِ سَعْدٍ عَنْ ٠ُقَاتِلٍ عَنْ أَبِي الْحَارِثِ قَالَ سَأَلْتُهُ يَعْنِي الرِّضَا (عَلَيْهِ الْسَّلا٠) عَنِ الأرْبَعِ رَكَعَاتٍ بَعْدَ الْ٠َغْرِبِ فِي السَّفَرِ يُعْجِلُنِي الْجَ٠َكِّنِّي الصَّلاَةَ عَلَى الأرْضِ هَلْ أُصَلِّيهَا فِي الْ٠ِلِ فَقَالَ نَعَ٠ْ صَلِّهَا فِي الْ٠11.

Muhammad ibn Yahya has narrated from Ahmad ibn Sulayman from Sa’d ibn Sa’d from Muqatil ibn Muqatil from abu al-Harith who has said the following: “I once asked him (Imam al-Rida’) (a.s.), about the four Rak‘at after al-Maghrib on a journey, because camel man is in hurry and I am not able to perform on the ground. Can I perform Salah (prayer) in the carriage on the camel’s back?

He (the Imam) said, ‘Yes, you can perform it in the carriage.’” شهور - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (5/394))