The Book of Occultation — al-Ṭūsī · Hadith 311 (#Ḥadīth #2)
Chapter 28 | Traditional reports that confirm the uprising of Imam Mahdi
130- روى إبراهيـم بن سلمة عن أحمـد بن مالك الفزاري عن حيـدر بن محمد الفزاري عن عباد بن يعقوب عن نصر بن مزاحم عن محمد بن مروان عن الكلبي عن أبي صالح عن ابن عباس في قوله تعالى: ﴿وفِي السَّماءِ رِزْقُكُمْ وما تُوعَدُونَ﴾، قال: هو خروج المهدي عليه السلام.
H 130 - The following verses of Quran prove that the rise of Imam Mahdi 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 .”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).