Shaykh Tusi has considered Zakaria ibn Adam Ash'ari Qomi one of the companions of Ja'far al-Sadiq (the sixth Shia Imam).[10] None of the Islam scholar's sources have called him one of the companions of Musa al-Kadhim (the seventh Shia Imam), but he has been mentioned among the narrators (hadith transmitter) of this Imam.[11]