Sahih Muslim 4155
صحيح مسلم#4155Sahihحَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا يَحْيَى، - يَعْنِي ابْنَ آدَمَ - حَدَّثَنَا عَمَّارٌ، - وَهُوَ ابْنُ رُزَيْقٍ - عَنْ أَبِي إِسْحَاقَ، عَنِ الْبَرَاءِ، بِمِثْلِهِ غَيْرَ أَنَّهُ قَالَ آخِرُ سُورَةٍ أُنْزِلَتْ كَامِلَةً .
Aba Ishaq reported this hadith on the authority of al-Bara' (Allah be pleased with him) with a slight variation of words, viz. the last sura that was revealed complete
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: 23:16