Wikipedia
Anjoman-e Hojjatieh (in Persian انجمن حجتیه lit. "Society of Allah's Proof Over Creation"), also called The Hojjatieh Society, is a traditionalist Shi'a lay religious organization founded in Iran that stresses adherence to orthodoxy and opposition to perceived heresy through non-violent evangelism. It was founded in response to emerging heterodox and messianic movements such as the Bahá'í Faith, Ruhollah Khomeini's political messianism and his theories regarding theocratic leadership, and various strands of Sunni extremism such as Salafism and Wahhabi movement.
According to the Encyclopædia Iranica, the organization was strictly pacifist and totally opposed to violence and persecution:
As the leaders of Ḥojjatiya were committed to a non-violent, persuasive strategy in dealing with Bahais, the Association did not take part in persecution of Bahais in post-revolutionary Iran. For all Ḥalabi’s animus against Bahais, he was a disciplined pacifist. He was distraught by violence and repeatedly warned his followers: “This is not the way, this is not our way” (interview with Nāder Fāżeli, 2003).
However members of the organization were taught to use subterfuge to infiltrate among Bahá'ís, steal hard to make copies of books, verbally harass Bahá'ís, slander Bahá'í religious figures, and spread rumors which denied Bahá'ís employment.
"(The leaders of Hojjatieh), more than the desecration of the Baha'i cemetery in 1979, or the damage against Baha'i communal and private property, represent the deliberateness of the campaign against the Baha'is, a campaign that continued after them."