2.283 . If ye be on a journey and cannot find a scribe , then a pledge in hand ( shall suffice ) . And if one of you entrusteth to another let him who is trusted deliver up that which is entrusted to him ( according to the pact between them ) and let him observe his duty to Allah . Hide not testimony . He who hideth it , verily his heart is sinful . Allah is Aware of what ye do .