Al-Qunut in Obligatory and Optional Salah (prayer)
Al-Kāfi|Volume 3|Book 4|Chapter 31
7ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ زُرَارَةَ عَنْ أَبِي جَعْفَرٍ (عَلَيْهِ الْسَّلام) قَالَ الْقُنُوتُ فِي كُلِّ صَلاَةٍ فِي الرَّكْعَةِ الثَّانِيَةِ قَبْلَ الرُّكُوعِ.
7. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Zurarah who has said the following: “Abu Ja‘far عليه السلام, has said, ‘There is Qunut (supplication after recitation in second Rak‘at) in every Salah (prayer) in the second Rak‘at before Ruku‘ (bowing down on one’s knees).”’
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/167)
- Ṣaḥīḥ al-Kāfī