The Sufficient (Vol 1) · Hadith 95 (#Ḥadīth #3)
Chapter 10 | Chapter on Giving Knowledge as Charity
3ـ وَبِهَذَا الاسْنَادِ عَنْ أَبِيهِ عَنْ أَحْمَدَ بْنِ النَّضْرِ عَنْ عَمْرِو بْنِ شِمْرٍ عَنْ جَابِرٍ عَنْ ابي جعفر قَالَ زَكَاةُ الْعِلْمِ أَنْ تُعَلِّمَهُ عِبَادَ الله.
3. Through the same chain of narrators he has narrated from his father from Ahmad ibn Nadr from ‘Amr and ibn Shimr from Jabir from abu Ja’far who has said the following. “Zakat, the tax, on knowledge is teaching it to the servants of Allah.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).