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).
Hadith Referenceصحیح ابن حبان / كتاب البر والإحسان / 416
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح: ق - انظر ما قبله.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط مسلم، وهب بن بقية من رجال مسلم، ومن فوقه ثقات على شرطهما، خالد الأول هو ابن عبد الله الواسطي الطحان، وخالد الثاني هو ابن مهران الحذاء.