The Funeral Prayer (Salat Al-Janazah)
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 26
وَقَالَ أَبُو جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ: «إِنَّ اَلْمَشْيَ خَلْفَ اَلْجَنَازَةِ أَفْضَلُ مِنَ اَلْمَشْيِ مِنْ بَيْنِ يَدَيْهَا وَ لاَ بَأْسَ إِنْ مَشَيْتَ بَيْنَ يَدَيْهَا.
Abu Ja'far, Imam Muhammad ibn Ali Al-Baqir عليه السلام, said: "Walking behind the funeral procession is better than walking in front of it, but there is no harm if you walk in front."
- Ṣaḥīḥ al-Faqīh