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 Allah knows what you do.
Meaning:-
Scribe: a public clerk or writer, usually one having official status.
Pledge: promise, undertaking, vow, word of honor, commitment, assurance, oath, guarantee
Conceal: Hide
Taint: contaminate, pollute, adulterate, infect,