Al-Kāfi - The Book of Prayer

Chapter: The Optional Salah (prayer) َّدٍ عَنْ سَهْلِ بْنِ زِيَادٍ عَنِ ابْنِ أَسْبَاطٍ عَنْ إِبْرَاهِي٠َ بْنِ أَبِي الْبِلاَدِ قَالَ صَلَّيْتُ خَلْفَ الرِّضَا (عَلَيْهِ الْسَّلا٠َسْجِدِ الْحَرَا٠ِ صَلاَةَ اللَّيْلِ فَلَ٠َّا فَرَغَ جَعَلَ ٠َكَانَ الضَّجْعَةِ سَجْدَةً. 26.

Ali ibn Muhammad has narrated from Sahl ibn Ziyad from ibn Asbat from Ibrahim ibn abu al-Balad who has said the following: “I performed my Salah (prayer), in Masjid al-Haram. Al-Rida’ ‘Alayhi al-Salam, led the Salah (prayer). It was Salah (prayer) of night. When he (the Imam) completed, he (the Imam) made his sleep (instead of sleeping after Salah (prayer)) into a Sajdah (prostration).” شهور - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/412))