2 : 283
۞ وَإِن كُنتُمۡ عَلَىٰ سَفَرٖ وَلَمۡ تَجِدُواْ كَاتِبٗا فَرِهَٰنٞ مَّقۡبُوضَةٞۖ فَإِنۡ أَمِنَ بَعۡضُكُم بَعۡضٗا فَلۡيُؤَدِّ ٱلَّذِي ٱؤۡتُمِنَ أَمَٰنَتَهُۥ وَلۡيَتَّقِ ٱللَّهَ رَبَّهُۥۗ وَلَا تَكۡتُمُواْ ٱلشَّهَٰدَةَۚ وَمَن يَكۡتُمۡهَا فَإِنَّهُۥٓ ءَاثِمٞ قَلۡبُهُۥۗ وَٱللَّهُ بِمَا تَعۡمَلُونَ عَلِيمٞ
If you are on a journey and find no scribe, then something should be taken as collateral. But if you trust one another, then the debtor should fulfill his trust, and let him fear Allah, his Lord. Do not conceal the testimony, for anyone who conceals it has a sinful heart, and Allah is All-Knowing of what you do.