Hadith.5488 - Amr ibn Sa'id Al-Mada'ini narrated from Muhammad ibn Umar Al-Sabati who said
I asked Abu Ja'far Al-Thani (as), (the second (as)), about a man who had appointed me as his executor and instructed to give something to his uncle every year. The uncle then passed away.
Abu Jafar (as) wrote in response: "Give it to his heirs."