He is admired in Karaite sources such as for example Judah Hadasi but his followers are criticized for abandoning him and changing his teachings to comply with Christian ideas.
Hadasi also refers to [[Queen Helene Adiabene ]] and a son of hers called Constans who became his disciples.
Unlike Karaite sources which criticize Queen Helene, the Jewish sources speak in complementary terms about her.
