Al-Kāfi
Hadith 16024ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ النُّعْمَانِ عَمَّنْ رَوَاهُ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) فِي الرَّجُلِ يُصَلِّي وَهُوَ يُومِىُ عَلَى دَابَّتِهِ قَالَ يَكْشِفُ مَوْضِعَ السُّجُودِ.
4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ali ibn al-Nu‘man from those who he has mentioned who has said the following: “Abu ‘Abd Allah (a.s.), about a man who performs Sajdah (prostration) on the saddle while on horseback, has said, ‘He must clear the place for his Sajdah (prostration).”’