ENOfficial
Al-‘Abbas b. ‘Abd al-Muttalib reported God’s messenger as saying, “He who is well-pleased with God as Lord, with Islam as religion, and with Muhammad as messenger will experience the savour of faith,” Muslim transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَن الْعَبَّاس بن عبد الْمطلب قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «ذَاقَ طَعْمَ الْإِيمَانِ مَنْ رَضِيَ بِاللَّهِ رَبًّا وَبِالْإِسْلَامِ دِينًا وَبِمُحَمَّدٍ رَسُولًا» . رَوَاهُ مُسْلِمٌ
sunnah.com