This document discusses the primary sources of teachings in Christianity and Islam. It states that the primary sources in Christianity are the Bible, and in Islam they are the Quran and hadith. It examines the authorship of books in the Bible and compares teachings around God, angels, prophets, scripture, and the afterlife between the Quran, Bible and hadith. It also compares acts of worship like prayer, fasting and alms-giving between the two faiths. The document concludes that while the New Testament and Islam share many similar beliefs, Islam specifies minimum requirements for acts of worship more clearly.