Sunan Ibn Majah 1743
سنن ابن ماجه#1743Da'ifحَدَّثَنَا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ الْحِزَامِيُّ، حَدَّثَنَا دَاوُدُ بْنُ عَطَاءٍ، حَدَّثَنِي زَيْدُ بْنُ عَبْدِ الْحَمِيدِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ زَيْدِ بْنِ الْخَطَّابِ، عَنْ سُلَيْمَانَ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ نَهَى عَنْ صِيَامِ رَجَبٍ .
It was narrated from Ibn ‘Abbas that:The Prophet (ﷺ) forbade fasting Rajab
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-AlbaniVery Daif
Muhammad Fouad Abd al-BaqiVery Daif
Shuaib Al ArnautDaif
Zubair Ali ZaiDaif
In-book reference: 7:106