Al-Kāfi
Hadith 14504ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ حَمَّادِ بْنِ عُثْمَانَ عَنِ الْحَلَبِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ إِذَا صَلَّيْتَ خَلْفَ إِمَامٍ لاَ تَقْتَدِي بِهِ فَاقْرَأْ خَلْفَهُ سَمِعْتَ قِرَاءَتَهُ أَوْ لَمْ تَسْمَعْ.
4. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hammad ibn ‘Uthaman from al-Halabiy who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘When you perform Salah (prayer) behind an Imam who is not qualified, read behind him the recitation, regardless, you hear him or not.’”