Kitāb al-Ghayba

H 122 - It is narrated from Saad bin Abdullah from Hasan bin Ali Zaituni from Zuhri Kufi from Banan bin Hamdawayh that he said: The passing away of Imam Ali Naqi (a.s) was mentioned before Imam Hasan Askari (a.s). He said: “That is so long as I am alive and remaining. However, how would it be like when they miss the one after me?”