Al-Baqarah 2:180

Kutiba AAalaykum itha hadaraahadakumu almawtu in taraka khayran alwasiyyatulilwalidayni wal-aqrabeena bilmaAAroofi haqqanAAala almuttaqeen

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.

It is enjoined upon you, when death approaches any one of you and he leaves some wealth, that he must bequeath for the parents and the nearest of kin in the approved manner, being an obligation on the God-fearing.