The mosque has an octagonal prism form, which is considered to be influenced from the plan of Qubbat al-Sakhrah (built 688–692) in Jerusalem.

For the storage of the relic, a small octagonal prism building is annexed to the wall facing qibla.

[5] The relic, in the possession of the Uwais al-Qarani's descendants, came first to WesternAnatolia, and was brought later to Istanbul in the beginning of the 17th century following a decree of Sultan Ahmed I (r. 1603–1617).

It is known that the relic was exhibited in a specially-built stone cell during Ramadan, the Islamic month of fasting, from the beginning of the 18th century.

[1] The relic is still being displayed to the public during the four weeks from the first Friday of the holy month on until the eve of Ramadan festivities.