Sunan Ibn Majah 2610
سنن ابن ماجه#2610SahihIt 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
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 20:78