Mukhtasar Bukhari

Narrated Sa'd bin Abi Waqqas (may Allah be pleased with him): I heard the Prophet (peace and blessings of Allah be upon him) say: "Whoever claims someone other than his (real) father as his father, knowing that he is not his father, Paradise is forbidden for him." (The narrator of the hadith, Uthman, said:) I narrated this hadith to Abu Bakrah (may Allah be pleased with him), and he said: My ears also heard this hadith from the Prophet (peace and blessings of Allah be upon him) and I remembered it.