The Book of Occultation — al-Ṭūsī · Hadith 74 (#Ḥadīth #8)

15- عنه، عن أحمد بن مهران، عن محمد بن علي، عن محمد بن الفضل، عن المخزومي- وكانت أمه من ولد جعفر بن أبي طالب- قال بعث إلينا أبوالحسن موسى عليه السلام فجمعنا ثم قال(لنا):أتدرون لم جمعتكم؟ فقلنا: لا. قال: اشهدوا أن ابني هذا وصيي والقيم بأمري وخليفتي من بعدي. من كان له عندي دين فليأخذه من ابني هذا، ومن كانت له عندي عدة فليتنجزه منه،ومن لم يكن له بد من لقائي فلا يلقني إلا بكتابه.

H 15 - It is narrated from Ahmad bin Mehran from Muhammad bin Ali from Muhammad bin Afzal from Makhzumi, whose mother was a descendant of Ja’far bin Abu Talib, that: Abul Hasan Musa summoned us and we gathered. Then he said: Do you know why I have summoned you? No, we answered. Witness that this son of mine is my testamentary trustee (Wasi) and one who will superintend my affair as my successor after me. Whoever has a debt (to be collected) from me, let him collect it from this son of mine. Whoever I have made a promise to; let him get its fulfillment from him. Whoever has to meet me, will only do so through his correspondence.

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