(1)
Abu Sa'id (RAA) narrated that the Messenger of Allah (ﷺ) said:
"Stand up when you see a funeral procession, and he who accompanies it should not sit down until the coffin is placed on the ground." Agreed upon. (DE)
Reference (DE): Bulugh al-Maram 572 (DE)
In-book reference (DE): Book 3, Hadith 41 (DE)
English translation (DE): Book 3, Hadith 597 (DE)