It is narrated from ‘Amir al-Sha‘bi that Sayyiduna ‘Ali (may Allah be pleased with him) said regarding the inheritance rights of the wife and parents: The wife gets one-fourth of the total wealth, and the mother gets one-third of what remains after the wife’s share; whatever is left after that is the father’s share. (That is: the wife gets 1, the mother gets 1, and the father gets 2 «كما مر آنفا»)