The ISST offers services for Muslims and individuals of all faiths through AbulQasim masjid. In addition to the daily prayers and Friday congregational prayers, ISST offers classes in the basics of Islam, Fiqh, the life of the Prophet Muhammad, and more. For those wanting to learn about Islam for the first time, ISST has an excellent outreach program specializing in introductory topics of Islam. ISST also operates Corpus Christi Islamic School Sunday School focuses primarily on mosque based education. Sunday School is in session every Sunday, except scheduled holidays, from 10:15am to 1:15pm. Classes are diverse and include Qur'an study and memorization, morals and manners, Introduction to Islam, History of Islam, How to speak Arabic, Hadith (Sayings of Prophet Mohammad pbuh), Fiqh and more.