Kitāb al-Ghayba

Hadith 361
imam-askariahl-al-bayttwelve-imams
وأما معجزاته الدالة على إمامته فأكثر من أن تحصى. منها:
As for the miracles of Imam Hasan Askari (a.s), which prove his Imamate, they are so many that they cannot be computed. For example the following:
Source: Shaykh Muḥammad b. al-Ḥasan al-Ṭūsī