Sunan Ibn Majah 833
سنن ابن ماجه#833Da'ifحَدَّثَنَا أَحْمَدُ بْنُ بُدَيْلٍ، حَدَّثَنَا حَفْصُ بْنُ غِيَاثٍ، حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ كَانَ النَّبِيُّ ـ صلى الله عليه وسلم ـ يَقْرَأُ فِي الْمَغْرِبِ {قُلْ يَا أَيُّهَا الْكَافِرُونَ} وَ {قُلْ هُوَ اللَّهُ أَحَدٌ} .
It was narrated that Ibn ‘Umar said:“The Prophet (ﷺ) used to recite in the Maghrib: ‘Say: O you disbelievers!’[Al-Kafirun (109)] and ‘Say: He is Allah, (the) One.’”[Al-Ikhlas]
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-AlbaniShadh
Muhammad Fouad Abd al-BaqiShadh
Shuaib Al ArnautDaif
Zubair Ali ZaiDaif
In-book reference: 5:31