Sahih Muslim Book - 5, Hadith - 1342

وَحَدَّثَنَا ابْنُ أَبِى عُمَرَ الْمَكِّىُّ حَدَّثَنَا سُفْيَانُ حَدَّثَنَا عَبْدَةُ بْنُ أَبِى لُبَابَةَ وَعَبْدُ الْمَلِكِ بْنُ عُمَيْرٍ سَمِعَا وَرَّادًا كَاتِبَ الْمُغِيرَةِ بْنِ شُعْبَةَ يَقُولُ كَتَبَ مُعَاوِيَةُ إِلَى الْمُغِيرَةِ اكْتُبْ إِلَىَّ بِشَىْءٍ سَمِعْتَهُ مِنْ رَسُولِ اللَّهِ -صلى الله عليه وسلم-. قَالَ فَكَتَبَ إِلَيْهِ سَمِعْتُ رَسُولَ اللَّهِ -صلى الله عليه وسلم- يَقُولُ إِذَا قَضَى الصَّلاَةَ « لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ لاَ شَرِيكَ لَهُ لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ وَهُوَ عَلَى كُلِّ شَىْءٍ قَدِيرٌ اللَّهُمَّ لاَ مَانِعَ لِمَا أَعْطَيْتَ وَلاَ مُعْطِىَ لِمَا مَنَعْتَ وَلاَ يَنْفَعُ ذَا الْجَدِّ مِنْكَ الْجَدُّ ».

'Abdah bin Abi Lubabah and 'Abdul-Malik bin 'Umair narrated that they heard Warrad, the scribe of Al-Mughirah bin Shu'bah, say: "Mu'awiyah wrote to Al-Mughirah saying: 'Write for me something that you heard from the Messenger of Allah (s.a.w).' So he wrote to him saying: 'I heard the Messenger of Allah (s.a.w) say, when he had finished the Salat: "La ilaha ill-Allahu wahdahu la sharika lahu, lahul-mulku wa lahul-hamdu wa huwa 'ala kulli shay'in qadir. Allahumma la mani' lima a'taita, wa la mu'tiya lima man'at, wa la yanfa'u dhal-jaddi minkal-jadd (There is none worthy of worship but Allah alone, with no partner or associate. His is the Dominion, to Him be praise, and He is Able to do all things. O Allah, none can withhold what You give, and none can give what You withhold, and the good fortune of any fortunate person is of no avail against You.)"