Qur'an 3:130

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تَأْكُلُوا۟ ٱلرِّبَوٰٓا۟ أَضْعَـٰفًا مُّضَـٰعَفَةً ۖ وَٱتَّقُوا۟ ٱللَّهَ لَعَلَّكُمْ تُفْلِحُونَ

“O you who have believed, do not consume usury, doubled and multiplied, but fear Allāh that you may be successful.”

Aal-i-Imraan 3:130 · Saheeh International