It is narrated from Sayyiduna Imran bin Husayn (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Your brother al-Najashi has died, so offer the funeral prayer for him." So he (peace and blessings be upon him) stood and we prayed behind him (peace and blessings be upon him), and I was in the second row; he (peace and blessings be upon him) led the prayer over him.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 15564