Muhammad ibn Ya‘qub from Muhammad ibn Isma‘il from al-Fadl ibn Shadhan from Hammad ibn Isa from Zurarah: (Imam) Abu Ja‘far عليه السلام, peace be upon him, said: “O Zurarah, you begin the Adhan with four Takbirs and you end it with two Takbirs and two declarations of ‘La ilaha illallah’.”