 Receiving a shipment of codes from Sheikh Nawawi, the Egyptian scholar was very surprised because only certain scholars of highly knowledgeable scholars could understand the code.To cure the curiosity, the Egyptian scholars agreed to invite Sheikh Nawawi for questioning.Sheikh Nawawi also fulfilled the invitation of the Egyptian scholars and invited Thawil as his pupil to play and swap places (Sheikh Nawawi became Thawil, as well as vice versa).