Kitāb al-Ghayba

H 130 - The following verses of Quran prove that the rise of Imam Mahdi (a.s) is definite in this Ummah: It is narrated from Ibrahim bin Salma from Ahmad bin Malik Fuzari from Haider bin Muhammad Fuzari from Abbad bin Yaqub from Nasr bin Muzahim from Muhammad bin Marwan from Kulaini from Abi Salih from Ibn Abbas with regard to the verse: “And in the heaven is your sustenance and what you are threatened with…” (51:22-23) He said “It implies the rise of the Qaim of Aale Muhammad (a.s).”