2:280 · Al-Baqara
وَإِنْ كَانَ ذُو عُسْرَةٍ فَنَظِرَةٌ إِلَىٰ مَيْسَرَةٍ ۚ وَأَنْ تَصَدَّقُوا خَيْرٌ لَكُمْ ۖ إِنْ كُنْتُمْ تَعْلَمُونَ
If the debtor is in a difficulty, grant him time Till it is easy for him to repay. But if ye remit it by way of charity, that is best for you if ye only knew.