Sahih Muslim 63
Sahih Muslim · Book 1: The Book of Faith · Clarifying the condition of the fath of one who knowingly denies his father
Sa'd and Abu Bakra each one of them said:
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ ، حَدَّثَنَا يَحْيَى بْنُ زَكَرِيَّاءَ بْنِ أَبِي زَائِدَةَ ، وَأَبُو مُعَاوِيَةَ عَنْ عَاصِمٍ ، عَنْ أَبِي عُثْمَانَ ، عَنْ سَعْدٍ ، وَأَبِي، بَكْرَةَ كِلاَهُمَا يَقُولُ سَمِعَتْهُ أُذُنَاىَ، وَوَعَاهُ، قَلْبِي مُحَمَّدًا صلى الله عليه وسلم يَقُولُ " مَنِ ادَّعَى إِلَى غَيْرِ أَبِيهِ وَهُوَ يَعْلَمُ أَنَّهُ غَيْرُ أَبِيهِ فَالْجَنَّةُ عَلَيْهِ حَرَامٌ " .
My ears heard and my hearing preserved it that Muhammad (peace and blessings be upon him) observed: He who claimed for another one his fatherhood besides his own father knowingly that he was not his father-to him Paradise is forbidden.