Surah An-Naml, Verse 3

ٱلَّذِينَ يُقِيمُونَ ٱلصَّلَوٰةَ وَيُؤۡتُونَ ٱلزَّكَوٰةَ وَهُم بِٱلۡأٓخِرَةِ هُمۡ يُوقِنُونَ٣

alladhīna yuqīmūna l-ṣalata wayu'tūna l-zakata wahum bil-ākhirati hum yūqinūna

Who establish prayer and give zakāh, and of the Hereafter they are certain [in faith].