Sunan an-Nasa'i 2133
سنن النسائي#2133Sound chainأَخْبَرَنَا عَمْرُو بْنُ يَزِيدَ، - هُوَ أَبُو بُرَيْدٍ الْجَرْمِيُّ بَصْرِيٌّ - عَنْ بَهْزٍ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ سَلَمَةَ، عَنْ أَبِي الْحَكَمِ، عَنِ ابْنِ عَبَّاسٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " أَتَانِي جِبْرِيلُ عَلَيْهِ السَّلاَمُ فَقَالَ الشَّهْرُ تِسْعٌ وَعِشْرُونَ يَوْمًا " .
It was narrated from Ibn 'Abbas that the Prophet said:"Jibril, peace be upon him, came to me and said: 'The month is twenty-nine days
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Our source also lists this ruling under Abu Ghuddah, the editor of the printed edition it was taken from. It is al-Albani's ruling printed again, so it is counted once.
In-book reference: 22:44