Rashi on Leviticus 10:4/רש"י על ויקרא י׳:ד׳

1דד אהרן THE UNCLE OF AARON — Uzziel was Amram’s brother, as it is said (Exodus 6:18) “And the sons of Kehath were [Amram …. and Uzziel]”.

2שאו את אחיכם וגו׳ CARRY YOUR BRETHREN etc. — as a man who says to his fellow: Remove the corpse from before the bride in order not to disturb the joy.