SHAH ALAM, Nov 25 — The Selangor Islamic Religious Department (Jais) has been instructed to ensure that all Islamic preachers invited to the state, especially to talk on matters related to aqidah (faith), Syariah (Islamic law), the teachings of tasawwuf (Sufism), and the practice of tariqa (spiritual paths), were accredited by the Selangor Islamic Religious Council (Mais) Accreditation Committee.