مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3562
Musnad of Abdullah bin Mas'ood
It was narrated that Abu Majid al-Hanafi said: I heard ‘Abdullah say: We asked the Messenger of Allah (ﷺ) about walking in funeral processions and he said: "(The bier) is to be followed and should not follow (or be preceded).”
Musnad Ahmad 3585lts isnad is da'eef because Abu Majid is unknown and Yahya a