It is narrated from Hazrat Nu'man (may Allah be pleased with him) that his father gave him a gift. My father went to the service of the Holy Prophet (peace and blessings of Allah be upon him). The Holy Prophet (peace and blessings of Allah be upon him) asked him, "Do you have other sons as well?" He said, "Yes." The Holy Prophet (peace and blessings of Allah be upon him) asked, "Have you given all your sons the same as you have given to him?" He said, "No." So the Holy Prophet (peace and blessings of Allah be upon him) refused to become a witness to it.