Hadith 6766, 6767 - Laws of Inheritance (Al-Faraa'id) - Sahih Al-Bukhari - صحيح البخاري - Collection of Actions, Sayings and Teachings of Prophet Muhammad (صلى الله عليه و سلم) - Kutub as-Sittah

85. Laws of Inheritance (Al-Faraa'id) - كتاب الفرائض

29) Chapter: Whoever claims to be the son of a person other than his father

Narrated Sa`d:

I heard the Prophet (ﷺ) saying, "Whoever claims to be the son of a person other than his father, and he knows that person is not his father, then Paradise will be forbidden for him." I mentioned that to Abu Bakra, and he said, "My ears heard that and my heart memorized it from Allah's Messenger (ﷺ).

Reference: 6766, 6767
English reference: Vol. 8, Book 80, Hadith 758
In-book reference: Book 85, Hadith 43
Grade: Sahih
Read this hadith from Darussalam Collection

29) باب مَنِ ادَّعَى إِلَى غَيْرِ أَبِيهِ

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا خَالِدٌ ـ هُوَ ابْنُ عَبْدِ اللَّهِ ـ حَدَّثَنَا خَالِدٌ، عَنْ أَبِي عُثْمَانَ، عَنْ سَعْدٍ ـ رضى الله عنه ـ قَالَ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ ‏‏‏.‏ فَذَكَرْتُهُ لأَبِي بَكْرَةَ فَقَالَ وَأَنَا سَمِعَتْهُ أُذُنَاىَ، وَوَعَاهُ، قَلْبِي مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم‏.‏ "‏ مَنِ ادَّعَى إِلَى غَيْرِ أَبِيهِ، وَهْوَ يَعْلَمُ أَنَّهُ غَيْرُ أَبِيهِ، فَالْجَنَّةُ عَلَيْهِ حَرَامٌ ‏"