Sura al-Baqara 2:275

ٱلَّذِينَ يَأْكُلُونَ ٱلرِّبَوٰا۟ لَا يَقُومُونَ إِلَّا كَمَا يَقُومُ ٱلَّذِى يَتَخَبَّطُهُ ٱلشَّيْطَٰنُ مِنَ ٱلْمَسِّ ذَٰلِكَ بِأَنَّهُمْ قَالُوٓا۟ إِنَّمَا ٱلْبَيْعُ مِثْلُ ٱلرِّبَوٰا۟ وَأَحَلَّ ٱللَّـهُ ٱلْبَيْعَ وَحَرَّمَ ٱلرِّبَوٰا۟ فَمَن جَآءَهُۥ مَوْعِظَةٌ مِّن رَّبِّهِۦ فَٱنتَهَىٰ فَلَهُۥ مَا سَلَفَ وَأَمْرُهُۥٓ إِلَى ٱللَّـهِ وَمَنْ عَادَ فَأُو۟لَٰٓئِكَ أَصْحَٰبُ ٱلنَّارِ هُمْ فِيهَا خَٰلِدُونَ

lladhīna yaʾkulūna l-ribā lā yaqūmūna illā ka-mā yaqūmu alladhī yatakhabbaṭuhu l-shayṭānu mina l-massi dhālika bi-annahum qālū innamā l-bayʿu mithlu l-ribā wa-aḥalla allāhu l-bayʿa wa-ḥarrama l-ribā fa-man jāʾahu mawʿiẓatun min rabbihi fa-antaha fa-lahu mā salafa wa-amruhu ilā allāhi wa-man ʿāda fa-ūlāʾika aṣḥābu l-nāri hum fīhā khālidūna

Those who devour usury will not stand except as stand one whom the Evil one by his touch Hath driven to madness. That is because they say: "Trade is like usury," but Allah hath permitted trade and forbidden usury. Those who after receiving direction from their Lord, desist, shall be pardoned for the past; their case is for Allah (to judge); but those who repeat (The offence) are companions of the Fire: They will abide therein (for ever).