Musannaf Ibn Abi Shaybah 33081 — A man who left three sons and said

It is reported from Mughirah that Hammad said concerning a man who at his death left three sons and said: "A third of my wealth is for my youngest son." Afterwards the eldest son said: "I do not carry out such a bequest," and the middle son said: "I carry it out." He said: In my opinion this wealth should be made into nine shares; three shares are to be given to the eldest son, and then the youngest son is to be given his own share and the share of the one who carried out the bequest.