Shaykh Ahmed Bazmool حفظه الله asks Al-Allamah Ahmed Najmi رحمه الله regarding individuals who hold secret meetings.
Shaykh Ahmed Bazmool: O virtuous Shaykh, if we know of some people who meet in secret and carry out activities that oppose the Salafi Manhaj, should we report them to the rulers (authorities)?
Al-Allamah Ahmed Najmi رحمه الله: What I believe is that it is obligatory to report these people (to the authorities). This is because if we were to remain silent about them, their affair would become greater and it would get out of control. It is obligatory to report them (to the authorities). It is not permissible for anyone to remain silent regarding them.