The Bequest

180. Prescribed for you when death approaches [any] one of you if he leaves wealth [is that he should make] a bequest for the parents and near relatives according to what is acceptable – a duty upon the righteous.

181. Then whoever alters the bequest after he has heard it – the sin is only upon those who have altered it. Indeed, Allāhis Hearing and Knowing.

182. But if one fears from the bequeather [some] error or sin and corrects that which is between them, there is no sin upon him. Indeed, Allāhis Forgiving and Merciful.

2-AlBaqarah

106. O you who have believed, testimony [should be taken] among you when death approaches one of you at the time of bequest – [that of] two just men from among you or two others from outside if you are traveling through the land and the disaster of death should strike you. Detain them after the prayer and let them both swear by Allāhif you doubt [their testimony, saying], “We will not exchange our oath for a price, even if he should be a near relative, and we will not withhold the testimony of Allāh. Indeed, we would then be of the sinful.”
107. But if it is found that those two were guilty of perjury, let two others stand in their place [who are] foremost [in claim] from those who have a lawful right. And let them swear by Allāh, “Our testimony is truer than their testimony, and we have not transgressed. Indeed, we would then be of the wrongdoers.”
108. That is more likely that they will give testimony according to its [true] objective, or [at least] they would fear that [other] oaths might be taken after their oaths. And fear Allāh and listen; and Allāh does not guide the defiantly disobedient people.

5-AlMa’idah