Surah Ash-Shura, ayah 23

ذَٰلِكَ ٱلَّذِي يُبَشِّرُ ٱللَّهُ عِبَادَهُ ٱلَّذِينَ ءَامَنُواْ وَعَمِلُواْ ٱلصَّٰلِحَٰتِۗ قُل لَّآ أَسۡـَٔلُكُمۡ عَلَيۡهِ أَجۡرًا إِلَّا ٱلۡمَوَدَّةَ فِي ٱلۡقُرۡبَىٰۗ وَمَن يَقۡتَرِفۡ حَسَنَةٗ نَّزِدۡ لَهُۥ فِيهَا حُسۡنًاۚ إِنَّ ٱللَّهَ غَفُورٞ شَكُورٌ ٢٣

Dhālikal-ladhī yubasshirullāhu 'ibādahul-ladhīna āmanū wa'amilus-sālihāti qul lā as'alukum 'alayhi ajran illal-mawaddata fil-qurbā waman yaqtarif hasanatan nazid lahū fīhā husnan innallāha ghafūrun shakūr

It is that of which Allāh gives good tidings to His servants who believe and do righteous deeds. Say, [O Muḥammad], "I do not ask you for it [i.e., this message] any payment [but] only good will through [i.e., due to] kinship." And whoever commits a good deed - We will increase for him good therein. Indeed, Allāh is Forgiving and Appreciative.¹⁴²¹