Sahih Muslim 1086
صحيح مسلم#1086Sahihحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَأَبُو كُرَيْبٍ قَالاَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ مُسْلِمٍ، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُكْثِرُ أَنْ يَقُولَ قَبْلَ أَنْ يَمُوتَ " سُبْحَانَكَ وَبِحَمْدِكَ أَسْتَغْفِرُكَ وَأَتُوبُ إِلَيْكَ " . قَالَتْ قُلْتُ يَا رَسُولَ اللَّهِ مَا هَذِهِ الْكَلِمَاتُ الَّتِي أَرَاكَ أَحْدَثْتَهَا تَقُولُهَا قَالَ " جُعِلَتْ لِي عَلاَمَةٌ فِي أُمَّتِي إِذَا رَأَيْتُهَا قُلْتُهَا { إِذَا جَاءَ نَصْرُ اللَّهِ وَالْفَتْحُ} " . إِلَى آخِرِ السُّورَةِ .
A'isha reported that the Messenger of Allah (ﷺ) before his death recited often:Hallowed be Thou, and with Thy praise, I seek forgiveness from Thee and return to Thee. She reported: I said: Messenger of Allah, what are these words that I find you reciting? He said: There has been made a sign for me in my Ummah; when I saw that, I uttered them (these words of glorification for Allah), and the sign is:" When Allah's help and victory..... to the end of the surah
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: 4:248