The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 501 (#Ḥadīth #32)
Chapter 17 | On Indications of the Divine Leadership of Ar-Ridha
32 - حَدَّثَنا أَبي رَحْمَةُ اللَّه قالَ: حَدَّثَنا سَعْدِ بْنِ عَبْدِاللَّه عَنْ مُحَمَّدِ بْنِ عِيسَى بْنِ عُبِيْد عَنْ داود بْنِ رزين قالَ كَانَ لابِي الْحَسَنِ مُوسَى بْنِ جَعْفَرٍ a.sُ عِنْدِي مَالٌ فَبَعَثَ فَأَخَذَ بَعْضَهُ وَتَرَكَ عِنْدِي بَعْضَهُ وَقَالَ مَنْ جَاءَكَ بَعْدِي يَطْلُبُ مَا بَقِيَ عِنْدَكَ فَإِنَّهُ صَاحِبُكَ فَلَمَّا مَضَى a.sُ أَرْسَلَ إِلَيَّ عَلِيٌّ ابْنُهُ a.sُ ابْعَثْ إِلَيَّ بِالَّذِي عِنْدَكَ وَهُوَ كَذَا وَكَذَا فَبَعَثْتُ إِلَيْهِ مَا كَانَ لَهُ عِنْدِي.
47-32 My father - may God have Mercy upon him - narrated that Sa’d ibn Abdullah quoted on the authority of Muhammad ibn Isa ibn Obayd, on the authority of Dawood ibn Razin, “I had some money which belonged to (Imam) Abil Hassan Musa ibn Ja’far (al-Kadhim) . The Imam sent someone to take some of the money and left the rest with me saying, ‘Pay back the rest of the money to whoever comes after the money later. He will be your Divine Leader.’ After the Imam passed away, his son Ali (Ar-Ridha’ ) sent someone after the money and asked me to send back the exact amount of money which I had. I sent him the money that was with me.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).