Shaykh Tusi has also considered Zakaria ibn Adam Ash'ari Qomi one of the companions of Ali al-Ridha (the eighth Shia Imam).[12] According to some narrations, Ali al-Ridha referred people to Zakaria ibn Adam in religious matters and introduced him as trustworthy in matters of religion and the world.[13] He received the religious funds of the people of Qom as the agent of the Imam.[13] On a Hajj pilgrimage from Medina to Mecca, Zakaria ibn Adam traveled with Ali al-Ridha.[14][15]