Al-Kāfi

Hadith 643
funeral-procession
4ـ أَبُو عَلِيٍّ الأشْعَرِيُّ عَنْ مُحَمَّدِ بْنِ عَبْدِ الْجَبَّارِ عَنْ صَفْوَانَ بْنِ يَحْيَى عَنِ الْعَلاَءِ بْنِ رَزِينٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَحَدِهِمَا (عَلَيْهِما الْسَّلام) قَالَ سَأَلْتُهُ عَنِ الْمَشْيِ مَعَ الْجَنَازَةِ فَقَالَ بَيْنَ يَدَيْهَا وَعَنْ يَمِينِهَا وَعَنْ شِمَالِهَا وَخَلْفِهَا.
4. Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan ibn Yahya from al-‘Ala’ ibn Razin from Muhammad ibn Muslim who has said the following: “I asked him [one of the two Imam] (abu Ja‘far or abu ‘Abd Allah, ‘Alayhim al-Salam, about walking in the funeral procession. He said, ‘Walk in front or on the right or left side or behind it.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī