The Sufficient (Vol 5) · Hadith 413 (#Ḥadīth #3)
Chapter 46 | Safe Return of Trust
3- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ خَالِدٍ عَنِ الْقَاسِمِ بْنِ يَحْيَى عَنْ جَدِّهِ الْحَسَنِ بْنِ رَاشِدٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَبِي عَبْدِ اللهِ قَالَ قَالَ أَمِيرُ الْمُؤْمِنِينَ ﷺ أَدُّوا الأمَانَةَ وَلَوْ إِلَى قَاتِلِ وُلْدِ الأنْبِيَاءِ.
3. A number of our people have narrated from Ahmad ibn Muhammad from ibn Khalid from al-Qasim ibn Muhammad ibn Yahya from his grandfather, al-Hassan ibn Rashid from Muhammad ibn Muslim who has said the following: “Abu ‘Abd Allah , has said that Amir al-Mu’minin , has said, ‘You must return a trust even if an assassin of the children of the prophet has left it with you.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).