Musannaf Ibn Abi Shaybah 33036 — A man in charge of wealth for both

Ata said that Sayyiduna Sa'd bin Ubadah (may Allah be pleased with him) divided his wealth among his heirs according to the Book of Allah, and then one of his wives gave birth to a boy. Sayyiduna Abu Bakr (may Allah be pleased with him) and Sayyiduna Umar (may Allah be pleased with him) sent word to Sayyiduna Qays bin Sa'd (may Allah be pleased with him): Set aside this boy's due for him. He said: I cannot undo the division that Sayyiduna Sa'd has made, but I give my own share to this boy. So Sayyiduna Abu Bakr and Sayyiduna Umar (may Allah be pleased with them both) accepted this from him.