When you say to them: "Come to what God has revealed, and the Prophet," they say: "Sufficient to us is the faith that our fathers had followed," even though their fathers had no knowledge or guidance.
O you who believe, on you rests (the responsibility) for your own selves. If you follow the right path those who have gone astray will not be able to do you harm. To God have all of you to return, when He will tell you what you were doing.
O you who believe, let two honest men among you be witness when you dictate your last will and testament as (the hour of) death draws near; and if death approaches while you are on a journey, two men other than yours. Detain them after the service of prayer, and if you doubt their word make them swear by God that: "We shall not take a bribe even though it be offered by a near relative, nor hide the testimony of God, for then we shall surely be sinful."
If it transpires they have concealed the truth, two of those who are immediately concerned should take their place and swear by God: "Our testimony is truer than theirs. We have stated no more (than the truth), or else we shall be unjust"
It is thus likely that men will bear witness rightly, or else fear that their oaths may be disproved by oaths given after them. So fear God, and do not forget that God does not guide the iniquitous.