Final answer:
The words and teachings of Muhammad were collected into a single book called the Qur'an, which is the holy book of Islam and records the word of God as recited by Muhammad.
Step-by-step explanation:
The words and teachings of Muhammad were collected into a single book called the Qur'an. The Qur'an is the holy book of Islam and is believed by Muslims to record the word of God as recited by Muhammad. It is considered the central religious text of Islam and provides guidance for all aspects of life.