According to historical resources, Darussade Agasi Besir Aga discovered the tomb of Hz. Hafir during Sultan Mahmut I (1730-1754). It takes place in front of the guard gate in Egrikapi in Eyup district. Just inside the tomb gate a gorgeously calligraphed plate contains which was made by the famed calligrapher Yesarizade Mustafa Izzet Efendi, written by Sahaflar Seyhizade Es'ad Efendi and Sultan II. Mahmut’s tughra. Nine of the Eyup Sultan’s Companions' graves in Istanbul contain this tughra either.