An-Naml 27:3

ٱلَّذِينَ يُقِيمُونَ ٱلصَّلَوٰةَ وَيُؤْتُونَ ٱلزَّكَوٰةَ وَهُم بِٱلْـَٔاخِرَةِ هُمْ يُوقِنُونَ

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].