On the occasion of the martyrdom anniversary of Imam al-Ridha (pbuh)

Imam Ridha's effect on spreading Islam was like a deep ocean

When Ali ibn Musa ar-Ridha (as) was martyred and his Imamate ended--the ideas and thoughts of the Holy Prophet's (swa) household and the matter of commitment to the Imams were established, in the world of Islam, so firmly that the oppressive and dictatorial Abbasid regime could not confront it. Ali ibn Musa ar-Ridha (as) managed to do this.