The Sufficient (Vol 1) · Hadith 38 (#Ḥadīth #2)
Chapter 1 | Chapter on the necessity to seek knowledge and the recommendations to learn
2ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ مُحَمَّدِ بْنِ الْحُسَيْنِ عَنْ مُحَمَّدِ بْنِ عَبْدِ الله عَنْ عِيسَى بْنِ عَبْدِ الله الْعُمَرِيِّ عَنْ أَبِي عَبْدِ الله قَالَ طَلَبُ الْعِلْمِ فَرِيضَةٌ.
2. Muhammad ibn Yahya has narrated from Muhammad ibn al-Hassan from Muhammad ibn ‘Abdallah from ‘Isa ibn ‘Abdallah al-‘Amri that Abu ‘Abdillah said, “Seeking knowledge is obligatory.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).