Sunan an-Nasa'i 1337
سنن النسائي#1337Sahihأَخْبَرَنَا مَحْمُودُ بْنُ خَالِدٍ، قَالَ حَدَّثَنَا الْوَلِيدُ، عَنْ أَبِي عَمْرٍو الأَوْزَاعِيِّ، قَالَ حَدَّثَنِي شَدَّادٌ أَبُو عَمَّارٍ، أَنَّ أَبَا أَسْمَاءَ الرَّحَبِيَّ، حَدَّثَهُ أَنَّهُ، سَمِعَ ثَوْبَانَ، مَوْلَى رَسُولِ اللَّهِ صلى الله عليه وسلم يُحَدِّثُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ إِذَا انْصَرَفَ مِنْ صَلاَتِهِ اسْتَغْفَرَ ثَلاَثًا وَقَالَ " اللَّهُمَّ أَنْتَ السَّلاَمُ وَمِنْكَ السَّلاَمُ تَبَارَكْتَ يَا ذَا الْجَلاَلِ وَالإِكْرَامِ " .
Thawban, the freed slave of the Messenger of Allah (ﷺ), narrated that:When he finished the prayer, the Messenger of Allah (ﷺ) would pray for forgiveness three times and say: 'Allahumma anta asalam, wa minka as-salam tabarakta ya dhal-jalali wal-ikram (O Allah, You are the source of eace (or the One free from all faults) and from You comes peace, blessed are You, O Possessor of Majesty and Honor
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:
In-book reference: 13:159