The Optional Salah (prayer)
Al-Kāfi|Volume 3|Book 4|Chapter 84
14ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ ابْنِ فَضَّالٍ عَنِ ابْنِ بُكَيْرٍ عَنْ زُرَارَةَ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ الْسَّلام) قَالَ كَانَ رَسُولُ الله (صلّى اللهُ عَلَيْهِ وَآلِه) يُصَلِّي مِنَ اللَّيْلِ ثَلاَثَ عَشْرَةَ رَكْعَةً مِنْهَا الْوَتْرُ وَرَكْعَتَا الْفَجْرِ فِي السَّفَرِ وَالْحَضَرِ.
14. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Faddal from ibn Bukayr from Zurarah who has said the following: “Abu Ja‘far عليه السلام, has said that the Messenger of Allah would perform thirteen Rak‘at at night of which one Rak‘at was al-Witr and two Rak‘at of the morning whether on a journey or at home.’”
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/405)
- Ṣaḥīḥ al-Kāfī, vol. 1, p. 336