“Nor is any heed to be paid to a newly introduced custom when it conflicts with the textual evidence, for custom is only admissible as proof of permissibility when it has been universally observed since the time of the Companions and the mujtahid Imams—as they themselves have stated.”

From all that has gone before it is therefore clear that placing the ʿUthmānic adhān at the door and keeping the Prophetic adhān inside the mosque is an innovation that must not be followed. It should be removed from the Jāmiʿ Mosque in order to revive the Sunnah of the Prophet ﷺ.

Was there a minaret in his ﷺ lifetime?

Al-Shāṭibī—and those he cited—have already affirmed that “the Prophetic Friday adhān was delivered from the minaret.” Ibn al-Hājj explicitly states the same in al-Madkhal, where he summarizes:

“The Sunnah for the Friday adhān is that when the imam ascends the pulpit, the muʾadhdhin should be on the minaret. This is how it was in the time of the Prophet ﷺ, Abu Bakr, ʿUmar, and during the early part of ʿUthmān’s caliphate. Then ʿUthmān, when the people became numerous, added another adhān at al-Zawrāʾ while retaining …”