Musannaf Ibn Abi Shaybah 33109 — A wife and both parents: from how

Sa'id bin al-Musayyib narrated that Sayyiduna Zayd bin Thabit (may Allah be pleased with him) was asked about the shares of a wife and parents, and he ordered that the wife be given a quarter, the mother a third of what remains, and what was left after that the father.