In his exegesis of ‘Risala-e-Makkiyah’ Shaikh Saad ud Deen (Allah have mercy on him) said,

If due to one’s unawareness one becomes a mureed or pledges spiritual convent (biayah) at the evil hands of an ignorant innovator (Shaykh) or accepts his khilafet then it is (essential) to (break these connections) and go to a true Shaykh and renew the biayah to avoid going astray.

Ta’leem ud Deen, p202