Bismillaah Al-Hamdulillaah wa salatu wa salaamu 'ala rasulullaah
It is reported that Al-Fudayl ibn 'Iyyad [d.187 H.] (rahimahullaah) said:
Verily, Allaah has angels who seek out the circles of remembrance [of Allaah], so be careful who you sit with; make sure it is not with an adherent of bid'ah, for Allaah does not look at them. And the sign of nifaq (hypocrisy in faith) is that a man mingles with an adherent of bid'ah.
Ibn Battah, Al-Ibanah Al-Kubra 1:460
Subhanak Allaahuma wa bihamdika ash-hadu anlaa illaaha illa anta astaghfiruka wa atubu ilayk
If I said anything correct, then it is from Allaah (subhanahu wa taa'ala), and if I erred, then that is from me and shaytan.