Quran

 3:130

يَا أَيُّهَا الَّذِينَ آمَنُوا لَا تَأْكُلُوا الرِّبَا أَضْعَافًا مُضَاعَفَةً ۖ وَاتَّقُوا اللَّهَ لَعَلَّكُمْ تُفْلِحُونَ ﴿١٣٠﴾

130. O you who believe! Do not feed on usury, compounded over and over—and fear Allah, so that you may prosper.