Sahih Muslim 2525
صحيح مسلم#2525Sahihحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا مُحَمَّدُ بْنُ بِشْرٍ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ أَبِي خَالِدٍ، حَدَّثَنِي مُحَمَّدُ بْنُ سَعْدٍ، عَنْ سَعْدِ بْنِ أَبِي وَقَّاصٍ، - رضى الله عنه - قَالَ ضَرَبَ رَسُولُ اللَّهِ صلى الله عليه وسلم بِيَدِهِ عَلَى الأُخْرَى فَقَالَ " الشَّهْرُ هَكَذَا وَهَكَذَا " . ثُمَّ نَقَصَ فِي الثَّالِثَةِ إِصْبَعًا .
Sa'd b. Abi Waqqas (Allah be pleased with him) said that the Messenger of Allah (ﷺ) struck his hand against the other and (then with the gesture of his two hands) said:The month is thus, thus (two times). He then withdrew (one of) his fingers at the third turn
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:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 13:31