حَدَّثَنَا أَبُو سَعِيدٍ الأَشَجُّ، حَدَّثَنَا عُقْبَةُ بْنُ خَالِدٍ، عَنْ أَبِي سَعْدٍ، سَعِيدِ بْنِ الْمَرْزُبَانِ عَنْ أَبِي سَلَمَةَ، عَنْ ثَوْبَانَ، رضى الله عنه قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ مَنْ قَالَ حِينَ يُمْسِي رَضِيتُ بِاللَّهِ رَبًّا وَبِالإِسْلاَمِ دِينًا وَبِمُحَمَّدٍ نَبِيًّا كَانَ حَقًّا عَلَى اللَّهِ أَنْ يُرْضِيَهُ ‏"‏ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ مِنْ هَذَا الْوَجْهِ ‏.‏

Thawban (ra) said: “The Messenger of Allah (PBUH) said: ‘Whoever says when he reaches the evening: “I am pleased with Allah as (my) Lord, with Islam as (my) religion, and with Muhammad (PBUH) as (my) Prophet (Raḍītu billāhi rabban wabil-Islāmi dīnan wa bi-Muḥammadin nabiyyan) it is a duty upon Allah to please him.’” (Hasan Gharib) Translation Not Available

Book Ref: Jamiya Tirmidhi Book 48 Hadith 3389
Web Ref:  Jamiya Tirmidhi Vol 6 Book 45 Hadith 3389