Quran 30:39 from Surah Ar-Room on Divine Marvels.
وَمَآ ءَاتَيۡتُم مِّن رِّبٗا لِّيَرۡبُوَاْ فِيٓ أَمۡوَٰلِ ٱلنَّاسِ فَلَا يَرۡبُواْ عِندَ ٱللَّهِۖ وَمَآ ءَاتَيۡتُم مِّن زَكَوٰةٖ تُرِيدُونَ وَجۡهَ ٱللَّهِ فَأُوْلَٰٓئِكَ هُمُ ٱلۡمُضۡعِفُونَ
English translation: And what you give for usury to increase in (the) wealth (of) people not (will) increase with Allah But what you give of zakah desiring (the) Countenance (of) Allah then those [they] (will) get manifold
Transliteration: wama ataytum min riban liyarbuwa fi amwali al-nasi fala yarbu inda al-lahi wama ataytum min zakatin turiduna wajha al-lahi fa-ulaika humu al-mud'ifuna