Saeed narrated that Ibn Abi Layla narrated from Sha'bi that Sayyiduna Ali and Sayyiduna Zaid (may Allah be pleased with them) said: "They used to give inheritance to three grandmothers: two from the father's side, and one from the mother's side, and they would give the sixth share to the nearest one."
Hadith Referenceسنن سعید بن منصور / كتاب ولاية العصبة / 1263
Hadith Takhrij«أخرجه سعيد بن منصور فى «سننه» ترقيم الدرالسلفية برقم:، 86، وابن أبى شيبة فى «مصنفه» برقم: 31934»