Sayyiduna Safinah (may Allah be pleased with him) narrates: I heard the Prophet (peace and blessings of Allah be upon him) say: "After me, the Caliphate will last for 30 years, then there will be monarchy." (The narrator says) If you count the Caliphate of Sayyiduna Abu Bakr as-Siddiq (may Allah be pleased with him) as two years, Sayyiduna Umar (may Allah be pleased with him) as ten years, Sayyiduna Uthman (may Allah be pleased with him) as twelve years, and Sayyiduna Ali (may Allah be pleased with him) as six years, (this makes a total of 30 years). Ali bin Ziyad says: I asked Hammad bin Salamah: Are these words "if you count" from Sayyiduna Safinah (may Allah be pleased with him)? He replied: Yes.