It is narrated from Sayyiduna Abdullah bin Hisham (may Allah be pleased with him) that his mother, Zaynab bint Humayd, took him to the Messenger of Allah (peace and blessings be upon him) when he was small, and he (peace and blessings be upon him) passed his hand over his head and supplicated for him. He said: The Messenger of Allah (peace and blessings be upon him) used to sacrifice just one goat on behalf of all his family members. All these hadiths have authentic chains regarding the concession that one goat suffices on behalf of all the people whose number is not fixed, contrary to the assumption of those who think that it suffices on behalf of only one person.