"Verily, Allâh
has angels who seek out the circles of remembrance [of Allâh], so be careful
who you sit with; make sure it is NOT with an adherent of bid’ah, for Allâh
does not look at them. And the sign of nifâq (hypocrisy in faith) is that a man
mingles with an adherent of bid’ah."
Ibn Battah,
Al-Ibânah Al-Kubrâ 1:460