Sudan State Council declared Risale Nur as a reference book in 1968. This means that Sudan State, especially Religious Affairs Chairmanship officially uses Risale Nur as a reference guide. In these days, many Sudanese Professors use Risale Nur as a reference guide in their books. Risale Nur is well-known especially in beliefe topics. Ordinary people in Sudan know these books by attending the Risale-i Nur lessons in nur medrassahs. (Medrassah means house where people study Risale-i Nur lessons)