An innovation is more beloved to iblees (the devil) than a sin because repentance is made for a sin, but is not made for an innovation.

—Sufyān al-Thawrī [d. 161H/778CE]

(Read on pg 140, Salaahud-Deen ibn ‘Alee ibn ‘Abdul-Maujood, The Biography of Sufyaan Ath-Thauree. Darussalam Publishers. Riyadh:2005.)