The Sufficient (Vol 1) · Hadith 51 (#Ḥadīth #6)
Chapter 2 | Chapter on the quality of knowledge its virtue and the virtue of the scholars
6ـ أَحْمَدُ بْنُ إِدْرِيسَ عَنْ مُحَمَّدِ بْنِ حَسَّانَ عَنْ إِدْرِيسَ بْنِ الْحَسَنِ عَنْ أَبِي إِسْحَاقَ الْكِنْدِيِّ عَنْ بَشِيرٍ الدَّهَّانِ قَالَ قَالَ أَبُو عَبْدِ الله لا خَيْرَ فِيمَنْ لا يَتَفَقَّهُ مِنْ أَصْحَابِنَا يَا بَشِيرُ إِنَّ الرَّجُلَ مِنْهُمْ إِذَا لَمْ يَسْتَغْنِ بِفِقْهِهِ احْتَاجَ إِلَيْهِمْ فَإِذَا احْتَاجَ إِلَيْهِمْ أَدْخَلُوهُ فِي بَابِ ضَلالَتِهِمْ وَهُوَ لا يَعْلَمُ.
6. Ahmad ibn Idris has narrated from Muhammad ibn Hassa’n from Idris ibn al-Hassan from abu Ishaq al-Kindi from Bashir al-Dahhan that Abu ‘Abdillah (al-Sadiq) said: 'There is no goodness in our people who do not learn fiqh (jurisprudence), oh Bashir. Indeed, when a man from them does not suffice himself with [knowledge] of fiqh, he becomes dependent on them (i.e. the non-shias). And when he becomes dependent on them, they lead him into the door of their misguidance, and he does not know.'
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).