The Book of Occultation · Hadith 126 (#Ḥadīth #7)
Chapter 8 | Allah does not leave the world with no authority (Hujjah)
8 - وبه عن أبي حمزة قال: قلت لأبي عبد الله: أتبقى الأرض بغير إمام؟ فقال: لو بقِيتِ الأرضُ بغير إمام لَساختْ.
(8) The previous series of narrators narrated that Abu Hamza ath-Thimali had said: I asked Abu Abdullah as-Sadiq : “Is the world left without an imam?” He said: “If the world remains without an imam, it will sink.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).