I am pleased with Allah as my Lord, with Islam as my religion, and with Muhammad — Evening Adhkar
رَضِيتُ بِاللَّهِ رَبًّا، وَبِالْإِسْلَامِ دِينًا، وَبِمُحَمَّدٍ ﷺ نَبِيًّا
Transliteration: Radheetu billaahi rabbaa, wa bil-islaami deenaa, wa bi-Muhammadin sallallaahu 'alayhi wa sallam nabiyyaa
Translation: I am pleased with Allah as my Lord, with Islam as my religion, and with Muhammad (peace be upon him) as my Prophet.
Repeat: 3 times
Reference: Abu Dawud 4:318