I've read this Hadith on his Link
https://www.al-islam.org/an-overview-of-mahdi-s-government-najimuddin-tabasi/imam-al-mahdi-s-mode-conduct-enemies#f_319c07f8_24
This is very shocking
(Quran) “While to Him submit whosoever there is in the heavens and the earth, willingly or unwillingly.”
The Imam (‘a) replied: “This verse has been revealed about al-Qa’im (‘atfs); it is when he rises up against the Jews, Christians, Sabeans, materialists, those who turned back from Islam, and the infidels of the east and west while offering Islam to them. He will command anyone who accepts i