The Book of Occultation — al-Ṭūsī · Hadith 760 (#Ḥadīth #9)
Chapter 52 | Some Qualities, practices and manners of the Master of the Age
491- عنه، عن عبدالرحمان بن أبي هاشم، عن علي بن أبي حمزة، عن أبي بصير، عن أبي عبدالله عليه السلام قال: إن أصحاب موسى ابتلوا بنهر، وهو قول الله عز وجل:﴿إِنَّ اللهَ مُبْتَلِيكُمْ بِنَهَرٍ﴾ وإن أصحاب القائم يبتلون بمثل ذلك.
H 491 - It is narrated from Fadhl from Abdur Rahman bin Abu Hashim from Ali bin Abu Hamza from Abu Basir from Imam Ja’far Sadiq that he said: “The companions of Musa were tested by the stream and it is that which the Almighty Allah has said: “Surely Allah will try you with a river…” (2:249) The companions of Qaim would also be tested in the same way.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).