Musnad Abu Ya'la al-Mawsili 3:48

Ubayd Allah narrated to us, Abd al-Wahhab ibn Abd al-Majid narrated to us, he said: I heard Yahya ibn Sa'id say: Waqid ibn Amr ibn Sa'd ibn Mu'adh al-Ansari informed me that Nafi' ibn Jubayr informed him that Mas'ud ibn al-Hakam informed him, from Ali, that the Messenger of Allah (may Allah bless him and grant him peace) stood, then sat—meaning in the funeral prayer.