It is reported that Sufyān Al-Thawrī – Allāh have mercy on him – said:

Whoever hears of a bidʿah, let him not tell it to those who are with him, lest he cast it into their hearts.

Commenting, Al-Dhahabī states, “The majority of the Imāms of the Salaf are upon this; they see that the hearts are weak, and specious arguments ensnare.”

Al-Dhahabī, Siyar ʾAʿlām Al-Nubalāʾ 7:261.