Bishr the Barefoot

Merv, also known as the Merve Oasis, formerly known as Alexandria, Antiochia in Margiana and Marw al-Shāhijān, was a major Iranian city in Central Asia, on the historical Silk Road, near today's Mary, Turkmenistan. Human settlements on the site of Merv existed from the 3rd millennium BC until the 18th century AD. It changed hands repeatedly throughout history. Under the Achaemenid Empire, it was the centre of the satrapy of Margiana. It was subsequently ruled by the ancient Macedonians, Seleucids, Parthians, Sasanians, Arabs, Ghaznavids, Seljuqs, Khwarazmians and Timurids, among others.

Baghdad is the capital of Iraq and the second-largest city in the Arab world after Cairo. It is located on the Tigris near the ruins of the ancient city of Babylon. In 762 CE, Baghdad was chosen as the capital of the Abbasid Caliphate, and became its most notable major development project. Within a short time, the city evolved into a significant cultural, commercial, and intellectual center of the Muslim world. This, in addition to housing several key academic institutions, including the House of Wisdom, as well as a multiethnic and multi-religious environment, garnered it a worldwide reputation as the "Center of Learning".

Abū Ḥamīd bin Abū Bakr Ibrāhīm, better known by his pen-names Farīd ud-Dīn (فریدالدین) and ʿAṭṭār of Nishapur, was a Persian poet, theoretician of Sufism, and hagiographer from Nishapur who had an immense and lasting influence on Persian poetry and Sufism. He wrote a collection of lyrical poems and number of long poems in the philosophical tradition of Islamic mysticism, as well as a prose work with biographies and sayings of famous Muslim mystics. The Conference of the Birds, The Book of Divine, and Memorial of the Saints are among his best known works.

In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. In non-monotheistic thought, a god is "a spirit or being believed to control some part of the universe or life and often worshipped for doing so, or something that represents this spirit or being".

Kufa, also spelled Kufah, is a city in Iraq, about 170 kilometres (110 mi) south of Baghdad, and 10 kilometres (6.2 mi) northeast of Najaf. It is located on the banks of the Euphrates River. The estimated population in 2003 was 110,000. Currently, Kufa and Najaf are joined into a single urban area that is mostly commonly known to the outside world as 'Najaf'.

Basra is a city in southern Iraq located on the Shatt al-Arab in the Arabian Peninsula. It had an estimated population of 1.4 million in 2018. Basra is also Iraq's main port, although it does not have deep water access, which is handled at the port of Umm Qasr. However, there is ongoing construction of Grand Faw Port on the coast of Basra, which is considered a national project for Iraq and will become one of the largest ports in the world and the largest in the Middle East, in addition, the port will strengthen Iraq’s geopolitical position in the region and the world. Furthermore, Iraq is planning to establish large naval base in the Faw peninsula.

Mecca is the holiest city in Islam and the capital of Mecca Province in the Hejaz region of western Saudi Arabia. It is 70 km (43 mi) inland from Jeddah on the Red Sea, in a narrow valley 277 m (909 ft) above sea level. Its last recorded population was 1,578,722 in 2015. Its estimated metro population in 2020 is 2.042 million, making it the third-most populated city in Saudi Arabia after Riyadh and Jeddah. Pilgrims more than triple this number every year during the Ḥajj pilgrimage, observed in the twelfth Hijri month of Dhūl-Ḥijjah.