Ayatollah Mohammad Reyshahri (Persian: محمد ری‌‌شهری‎) was born into a religious family in Rey on 29 October 1946. He was educated in Qom and Najaf in the field of theology.

Maulana Muhammad Raza Dawoodani is a young muballigh from Karachi, Pakistan, serving religion all around the world in different capacities and forms.

Shaykh Tajri initially studied Computer Science at City University. He subsequently went on to complete a BA (Hons) in Islamic Studies at Middlesex University (2007) whilst simultaneously studying the traditional Islamic Sciences at the Islamic Seminary in London. Despite being quadrilingual, his linguistic teaching specialty lies in Arabic. He graduated from the advanced levels of Arabic Language, Grammar and Poetry at the University of Damascus in 2007, before studying at the Imam Khomeini Islamic Seminary in Syria (2007-2008).