If ye are on a journey, and cannot find a scribe, a pledge with possession (may serve the purpose). And if one of you deposits a thing on trust with another, Let the trustee (Faithfully) discharge His trust, and let him fear his Lord. Conceal not evidence; for whoever conceals it,- His heart is tainted with sin. And God Knoweth all that ye do. (2:283)

And call in remembrance the favour of God unto you, and His covenant, which He ratified with you, when ye said: "We hear and we obey": And fear God, for God knoweth well the secrets of your hearts. (5:8)

Those who witness no falsehood, and, if they pass by futility, they pass by it with honourable (avoidance); (25:72)