This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionRashidun Caliphs Umar ibn Al-Khattāb - عُمر بن الخطّاب ثاني الخلفاء الراشدين.svg
English: 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.
العربية: اسم عُمر بن الخطّاب بالخط العربي الثلث العثماني كما يظر في آيا صوفيا في بمدينة إسطنبول بتركيا
This image shows a flag, a coat of arms, a seal or some other official insignia. The use of such symbols is restricted in many countries. These restrictions are independent of the copyright status.
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.