‘Abdullah b. ‘Umar – Allah be pleased with them both – said:

Every bid’ah (religious innovation) is misguidance, even if people think it is good.

Al-Lâlakâ’î in Sharh Usûl I’tiqâd Ahl Al-Sunnah wa Al-Jamâ’ah Vol 1. P134, no.111; and Ibn Battah in Al-Ibânah Al-Kubraa Vol.1 p219, no. 213