Do mosques contain relics of the founder?

Answer 1

Answer 1

It is not clear what is meant by founder whether the founder of the mosque or the founder of Islam.

As for the founder of the mosque, it is forbidden to keep any relics inside the mosque for the mosque founder.

As for the founder of Islam, it is known that Islam is God religion conveyed to human kind through God prophets since start of human kind. Islam, in its universal sense as submission to God the one and only one the Creator, is the mission and call of all God prophets and the main teachings of all God authentic holy books. As Judaism is the religion per God revelation of Torah to prophet Moses, Christianity is the religion per God revelation of The Bible to Prophet Jesus, the very name Islam is God religion per God revelation of Quran to prophet Muhammad. In this regards, no relics of neither God (Allah) nor of the prophet is contained inside the Mosque. Only you may find wall hangings or drawings of Quran verses, God names or prophet names, prophet sayings, praying quotes, clocks, calendars, or religious books. You never find figure drawings or statues.

Answer 2

There are some mosques that do contain reliquaries, usually containing hair or skin that supposedly belonged to Muhammad, but these are few and far between and usually only visited by local pilgrims as opposed to Mecca and Medina which have no such artifacts.