كتاب الْمَسَاجِدِ وَمَوَاضِعِ الصَّلاَةِ
5  
The Book of Mosques and Places of Prayer
(26)
Chapter: It is recommended to recite statements of remembrance after the prayer, and how that is to be done
(26)
باب اسْتِحْبَابِ الذِّكْرِ بَعْدَ الصَّلاَةِ وَبَيَان صِفَتِهِ ‏
Sahih Muslim 593 c

Warrad, the freed slave of Mughira b. Shu'ba, reported:

Mughira b. Shu'ba wrote to Mu'awiya (it was Warrad who wrote this letter for him, i. e. Mughira): I heard the Messenger of Allah (ﷺ) saying:" When the salutation is pronounced." and the rest of the hadith is the same except this that he made no mention of:" He is Potent over everything."
وَحَدَّثَنِي مُحَمَّدُ بْنُ حَاتِمٍ، حَدَّثَنَا مُحَمَّدُ بْنُ بَكْرٍ، أَخْبَرَنَا ابْنُ جُرَيْجٍ، أَخْبَرَنِي عَبْدَةُ بْنُ أَبِي لُبَابَةَ، أَنَّ وَرَّادًا، مَوْلَى الْمُغِيرَةِ بْنِ شُعْبَةَ قَالَ كَتَبَ الْمُغِيرَةُ بْنُ شُعْبَةَ إِلَى مُعَاوِيَةَ - كَتَبَ ذَلِكَ الْكِتَابَ لَهُ وَرَّادٌ - إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ حِينَ سَلَّمَ ‏.‏ بِمِثْلِ حَدِيثِهِمَا ‏.‏ إِلاَّ قَوْلَهُ ‏ "‏ وَهُوَ عَلَى كُلِّ شَىْءٍ قَدِيرٌ ‏"‏ ‏.‏ فَإِنَّهُ لَمْ يَذْكُرْ ‏.‏
Reference : Sahih Muslim 593c
In-book reference : Book 5, Hadith 177
USC-MSA web (English) reference : Book 4, Hadith 1232
  (deprecated numbering scheme)