The Sufficient (Vol 5) · Hadith 863 (#Ḥadīth #16)
Chapter 109 | Security Deposit ( Al-Rahn ) Mortgage
16- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ وَأَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ مَحْبُوبٍ عَنْ أَبِي وَلادٍ قَالَ سَأَلْتُ أَبَا عَبْدِ اللهِ عَنِ الرَّجُلِ يَأْخُذُ الدَّابَّةَ وَالْبَعِيرَ رَهْناً بِمَالِهِ أَلَهُ أَنْ يَرْكَبَهُ قَالَ فَقَالَ إِنْ كَانَ يَعْلِفُهُ فَلَهُ أَنْ يَرْكَبَهُ وَإِنْ كَانَ الَّذِي رَهَنَهُ عِنْدَهُ يَعْلِفُهُ فَلَيْسَ لَهُ أَنْ يَرْكَبَهُ.
16. A number of our people have narrated from Sahl ibn Ziyad and Ahmad ibn Muhammad from ibn Mahbub from abu Wallad who has said the following: “This is concerning my question before abu ‘Abd Allah , about the case of a man who held a stumper and camels as al-Rahn (security deposit) against his assets; if he could ride them. He (the Imam) said, ‘If he feeds them he can ride; but if the one who has left them as al-Rahn (security deposit) feeds them, then he cannot ride.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).