Hazrat Bahz bin Hakim narrates from his father and grandfather that the Noble Prophet (peace and blessings be upon him) said: When the grazing camels reach forty, then one bint laboon is due as zakat; the camel will not be separated according to its account, and whoever pays zakat seeking reward from Allah Almighty, then for him is its reward; it is a firm command among the firm commands of our Lord. Nothing from zakat is lawful for the family of Muhammad (peace and blessings be upon him).