Sahih Muslim 1344
صحيح مسلم#1344Sahihوَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدَةُ بْنُ سُلَيْمَانَ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِي الزُّبَيْرِ، مَوْلًى لَهُمْ أَنَّ عَبْدَ اللَّهِ بْنَ الزُّبَيْرِ، كَانَ يُهَلِّلُ دُبُرَ كُلِّ صَلاَةٍ . بِمِثْلِ حَدِيثِ ابْنِ نُمَيْرٍ وَقَالَ فِي آخِرِهِ ثُمَّ يَقُولُ ابْنُ الزُّبَيْرِ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُهَلِّلُ بِهِنَّ دُبُرَ كُلِّ صَلاَةٍ .
Abu Zubair reported:Abdullah b Zubair used to say La ilaha il-Allah at the end of every prayer like the hadith narrated by Ibn Numair and he reported it in the end, and then reported Ibn Zubair saying: The Messenger of Allah (ﷺ) uttered La ilaha il-Allah at the end of every prayer
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: 5:181