A man who died leaving three sons and bequeathed the like of the share of one of them

Dawud bin Abi Hind said: Amir was asked about a man who at his death left three sons and bequeathed an amount equal to the share of one son. He said: That person is the fourth; he will receive one-fourth.

Mansur and al-A'mash report that Ibrahim said: When a man dies leaving three sons and bequeaths an amount equal to the share of one son, then count one more person and divide the wealth into four parts.

The same content is reported from al-Sha'bi.