Since his arrival in Canada from Beirut in 1976, Dr. El-Kassem has been actively involved in Islamic da`wah. He has also participated in interfaith dialogue and appeared on numerous radio and TV programs. He hosts a weekly radio show, Islamic Perspectives, on 1290 CJBK. He is also the author of many Islamic books, and is a visiting imam at a number of Islamic centers across Ontario, Canada. He is also the Muslim chaplain at the University of Western Ontario.