Ibn Numayr narrated to us, my father narrated to me, Isma'il narrated to us, from al-Sha'bi, from al-Nu'man ibn Bashir, that the Messenger of Allah (peace be upon him) said: "Do you have other sons besides him?" He said: "Yes." He said: "Have you given all of them the like of this?" He said: "No." He said: "Then I will not bear witness to injustice."