The Funeral Prayer (Salat Al-Janazah)
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 26
وَ رَوَى زُرَارَةُ وَ مُحَمَّدُ بْنُ مُسْلِمٍ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ أَنَّهُ قَالَ: «اَلصَّلاَةُ عَلَى اَلْمُسْتَضْعَفِ وَ اَلَّذِي لاَ يُعْرَفُ مَذْهَبُهُ يُصَلِّي عَلَى اَلنَّبِيِّ صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ وَ يَدْعُو لِلْمُؤْمِنِينَ وَ اَلْمُؤْمِنَاتِ وَ يُقَالُ: «اَللَّهُمَّ اِغْفِرْ لِلَّذِينَ تٰابُوا وَ اِتَّبَعُوا سَبِيلَكَ وَ قِهِمْ عَذٰابَ اَلْجَحِيمِ».
Zurarah and Muhammad ibn Muslim narrated from Imam Muhammad ibn Ali Al-Baqir عليه السلام that He said: "Prayers over the oppressed (Al-Mustadh'afin) and those who are unversed of their beliefs will be: first send salawat for the Prophet his family, and then make supplications for the believing men and women, and then do supplication saying: Allāhumma ighfir lilladhīna tābū wa ittaba‘ū sabīlaka wa qihim ‘adhāba al-jaḥīm 'O’ Allah سبحانه وتعالى, forgive those who have repented and followed Your path, and protect them from the punishment of Hellfire.'"
- Ṣaḥīḥ al-Faqīh