«...To give an indication of Ustad Nursi’s scholarly accomplishment, he had memorized over 90 major books that were taught in the Ottoman madrasahs along with the Qur’an, thousands of prophetic traditions, and a major and voluminous Arabic dictionary up to the letter sīn. He was never asked a question in scholarly examinations but he gave a sound and convincing answer....» https://www.reflections-rn.org/who-is-nursi
