Dawud bin Abi Hind narrates that Hazrat Amir was asked about a man who, at the time of his death, left behind three sons and made a bequest equal to the share of one son. He replied: That man, who is the fourth, will receive one-fourth of the share.

Mansur and A'mash narrate that Ibrahim said: When a man dies leaving behind three sons and makes a bequest equal to the share of one son, then consider it as an addition of one person and divide the wealth into four parts.

The same subject is also narrated from Sha'bi.