Al-Kāfi - The Book of Prayer

Chapter: Performing Salah (Prayer) Behind a Qualified Person, Recitation behind Him and His Responsibilities َّادِ بْنِ عِيسَى عَنْ حَرِيزٍ عَنْ زُرَارَةَ وَ٠ٍ قَالاَ قَالَ أَبُو جَعْفَرٍ (عَلَيْهِ الْسَّلا٠ِنِينَ (صلّى اللهُ عَلَيْهِ وَآلِه) يَقُولُ ٠َنْ قَرَأَ خَلْفَ إِ٠َاتَ بُعِثَ عَلَى غَيْرِ الْفِطْرَةِ. 6.

Muhammad ibn Ahmad has narrated from Muhammad from Hammad ibn ‘Isa from Hariz from Zurarah from Muhammad ibn Muslim who has said the following: “Abu Ja‘far (a.s.), has said that ’Amir al-Mu’minin would say, ‘One who recites when performing Salah (prayer) behind an Imam whom he follows and dies, he has died in a religion other than Fitrah (Islam).”’ صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (5/266))