Sayyiduna Sa’d bin Malik (may Allah be pleased with him) narrates: I heard this with my own two ears and my heart preserved it after hearing it from the tongue of the Noble Prophet (peace and blessings be upon him). He said:“Whoever claims (to be) the son of someone in Islam, knowing that he is not his father, Paradise is forbidden for such a person.”The narrator says: I mentioned this to Sayyiduna Abu Bakrah (may Allah be pleased with him), and he said: I also heard this with my own two ears, and my heart preserved it after hearing it from the tongue of the Noble Prophet (peace and blessings be upon him).