And if you be on a journey and do not find a scribe, then (let there be) a pledge with possession (of some article to secure your debt). If one of you entrusts something to another let him who is entrusted deliver his trust, and let him take Allâh, his Lord, as a shield. Do not conceal the evidence, for whoso conceals it, his heart is certainly sinful. Allâh is Well-Aware of all that you do.