Erbaş emphasized the historical events surrounding the conquest of Istanbul in 1453 during his sermon.
He highlighted that after the conquest, Istanbul became an Islamic city, with significant transformations taking place. One such transformation was the conversion of Hagia Sophia into a mosque, signifying the city's shift towards Islamic identity.
Erbaş also mentioned the impactful sermon delivered by His Holiness Akşemseddin from the pulpit, which served as an announcement to the entire world that Istanbul had become an Islamic city.