Distribution of inheritance when a man with four wives divorces one, marries another, and then dies without knowing which wife was divorced.

Primary text

If a man has four wives, divorces one, marries another after the first's waiting period expires, and then dies without knowing which wife was divorced, the wife he married subsequently receives one-fourth of the wives' inheritance share. Ahmad explicitly stated this rule, and there is no disagreement among scholars concerning this portion. Following this, a casting of lots (qur'a) must occur among the four wives. The wife whose lot is drawn forfeits inheritance, while the remaining wives inherit based on the outcome of the lot.