Sunan Abi Dawud, Book 41, Hadith 5054 (USC-MSA)

Narrated A man: AbuSallam told that he was in the mosque of Hims. A man passed him and the people said about him that he served the Prophet. He (AbuSallam) went to him and said: Tell me any tradition which you heard from the Messenger of Allah and there were no man between him and you. He said: I heard the Messenger of Allah say: If anyone says in the morning and in the evening: "I am pleased with Allah as Lord, with Islam as religion, with Muhammad as Prophet," Allah will certainly please him.

حَدَّثَنَا حَفْصُ بْنُ عُمَرَ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي عَقِيلٍ، عَنْ سَابِقِ بْنِ نَاجِيَةَ، عَنْ أَبِي سَلاَّمٍ، أَنَّهُ كَانَ فِي مَسْجِدِ حِمْصٍ فَمَرَّ بِهِ رَجُلٌ فَقَالُوا هَذَا خَدَمَ النَّبِيَّ صلى الله عليه وسلم فَقَامَ إِلَيْهِ فَقَالَ حَدِّثْنِي بِحَدِيثٍ سَمِعْتَهُ مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم لَمْ يَتَدَاوَلْهُ بَيْنَكَ وَبَيْنَهُ الرِّجَالُ قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ‏ "‏ مَنْ قَالَ إِذَا أَصْبَحَ وَإِذَا أَمْسَى رَضِينَا بِاللَّهِ رَبًّا وَبِالإِسْلاَمِ دِينًا وَبِمُحَمَّدٍ رَسُولاً إِلاَّ كَانَ حَقًّا عَلَى اللَّهِ أَنْ يُرْضِيَهُ ‏" ‏ ‏.‏

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