Similar narrations

• Mishkāt al-Anwār #715 Imam Sadiq (a.s) said: “There is an alms tax for everything. The alms tax for knowledge is teaching.”
• Mīzān al-Ḥikma #168 Imam al-Sadiq (AS) said, 'Verily upon everything is its zakat, and the zakat of knowledge is to teach it to those who are worthy of it.
• Ghurar al-Ḥikam #6927 Imam Ali (AS) said, Sharing knowledge [with those who deserve] is the alms-tax of knowledge.