Imamate of Imam Hasan Askari عليه السلام
Kitāb al-Ghayba|Volume 1|Book 1|Chapter 33
وأما من قال لا ولد لأبي محمد عليه السلام فقوله يبطل بما دللنا عليه من إمامة الاثني عشر وسياقة الأمر فيهم. ويزيده بيانا:
As for the assertion that Imam Hasan Askari عليه السلام did not have a son, it is invalid, because we proved that the Imams are twelve and this divinely ordained authority is bestowed to them. There are some more reports on this topic, which we mention below: