The Book of Occultation — al-Ṭūsī · Hadith 665 (#Ḥadīth #7)

401- ويروي النصارى أن فيمن تقدم من عاش سبعمائة سنة وأكثر.

H 401 - Christians have narrated: Some of their ancestors lived for seven hundred years and some even exceeded this.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).