Sunan Ibn Majah 2610
سنن ابن ماجه#2610Sahihحَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنْ عَاصِمٍ الأَحْوَلِ، عَنْ أَبِي عُثْمَانَ النَّهْدِيِّ، قَالَ سَمِعْتُ سَعْدًا، وَأَبَا، بَكْرَةَ وَكُلُّ وَاحِدٍ مِنْهُمَا يَقُولُ سَمِعَتْ أُذُنَاىَ، وَوَعَى، قَلْبِي مُحَمَّدًا صلى الله عليه وسلم يَقُولُ " مَنِ ادَّعَى إِلَى غَيْرِ أَبِيهِ وَهُوَ يَعْلَمُ أَنَّهُ غَيْرُ أَبِيهِ فَالْجَنَّةُ عَلَيْهِ حَرَامٌ " .
It was narrated that Abu Uthman Nahdi said:“I heard Sa'd and Abu Bakrah both say that they heard directly from Muhammad (ﷺ) saying it and memorized: 'Whoever claims to belong to someone other than his father knowing the he is not his father, Paradise will be forbidden to him.”
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 20:78