Abdur Rahman bin Abi al-Zanad عبد الرحمن بن أبي الزناد · The Chapters on Gifts

his father gave him a gift of a slave, and he came to the Prophet (ﷺ) so that he could witness the gift. He said: “Have you given something to all of your children?” He said: “No.” He said: “Then take back (your gift).”