Musannaf Ibn Abi Shaybah 32758 — A man seeking his heirs' permission

Yunus narrates from al-Hasan (may Allah have mercy on him) that he was asked about a man who, with the consent of the heirs, bequeathed more than one-third of his wealth, and when he died the heirs refused to pay out more than one-third. He said: It is binding upon them.