Query: Usually, how has each Imam been related to the previous Imam?
Context: According to the majority of Shī'a, namely the Twelvers (Ithnā'ashariyya), the following is a listing of the rightful successors to Muḥammad. Each Imam was the son of the previous Imam except for Hussayn ibn 'Alī, who was the brother of Hassan ibn 'Alī. The belief in this succession to Muḥammad stems from various Quranic verses which include: 75:36, 13:7, 35:24, 2:30, 2:124, 36:26, 7:142, 42:23.[citation needed]