Sunan Ibn Majah 1958
سنن ابن ماجه#1958Sahihحَدَّثَنَا حُبَيْشُ بْنُ مُبَشِّرٍ، حَدَّثَنَا يُونُسُ بْنُ مُحَمَّدٍ، حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، عَنْ أَيُّوبَ، عَنْ عِكْرِمَةَ، عَنْ عَائِشَةَ، . أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ أَعْتَقَ صَفِيَّةَ وَجَعَلَ عِتْقَهَا صَدَاقَهَا وَتَزَوَّجَهَا .
It was narrated from 'Aishah:that the Messenger of Allah (ﷺ) set Safiyyah free, and made her ransom her dowry, and he married her
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:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih Lighairihi
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih
In-book reference: 9:114