Icon of Umar ibn Al-Khattāb — The vector version of the iconic calligraphy of the 2nd Rashidun Chalif, Umar ibn Al-Khattāb, which is prominent in the Hagia Sofia in Istanbul, Turkey.
Photo Credit: By Petermaleh - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=25957305