The Book of Occultation — al-Ṭūsī · Hadith 300 (#Ḥadīth #8)
Chapter 27 | Traditions of the Holy Imams on the occultation of Imam Mahdi
120- أحمد بن إدريس عن علي بن محمد عن الفضل بن شاذان عن عبد الله بن جبلة عن عبد الله بن المستنير عن المفضل بن عمر قال:سمعت أبا عبد الله عليه السلام يقول: إن لصاحب هذا الأمر غيبتين؛ إحداهما تطول حتى يقول بعضهم: مات! ويقول بعضهم: قتل! ويقول بعضهم: ذهب! حتى لا يبقى على أمره من أصحابه إلا نفر يسير. لا يطلع على موضعه أحد من ولده ولا غيره إلا المولى الذي يلي أمره.
H 120 - It is narrated from Ahmad bin Idris from Ali bin Muhammad from Fadhl bin Shazan from Abdullah bin Jaballa from Abdullah bin Mustanir from Mufaddal bin Umar from Imam Ja’far Sadiq that he said: “The man of this matter disappears twice. The first occultation lasts long until some people say that he has died, some say that he has been killed and others say that he has gone. Till only a few of his companions will remain. None of his children and others would know his location, except a servant, who manages his affairs.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).