Shaykh Muqbil ibn Hādi al-Wadiʿī:

Therefore, an important issue related to advising our brothers remains, which is in fact advice directed to all of our brothers of Ahl al-Sunnah. This issue is a sharpened sword used by the people of Sunnah, that they do not attend the lectures of the people of innovation. This shatters their backs.

I had advised some brothers from the Emirates who applied it – praise solely belongs to Allah – I advised them to not attend the lectures, sittings or gatherings of the people of innovation, for their gatherings and sittings are upon falsehood and deception.