The answer you are looking for is the QUR'AN, but most Muslims would disagree with this answer based on the phrasing of the question. According to Muslims, Muhammad received the Qur'an directly from God, so the words of the Qur'an are not Muhammad's teachings, but rather God's teachings with Muhammad being little more than a vessel for God's message.
As for what Muhammad himself is supposed to have taught without direct Divine Guidance, there are numerous Hadiths as well as Sirat an-Nabi (The Biography of the Prophet) where Muhammad gives many direct commands and philosophical edicts. Those would be more clearly and unambiguously the teachings of Muhammad.
Muslims known as Sufis. They belong to orders of people, who are devoted to Muhammad and his teachings.
The good morals; mainly Honesty and keeping promise; per Islam and prophet Muhammad (PBUH) teachings
Mainly in the Qurán (considered canon), and in the hadith (not always considered canon).
The effect of the teachings of the prophet Muhammad was people still believe on his teachings....!!
Laws were based on the religious teachings of Muhammad.
Islam is the religion based on the teaching of Muhammad.
The book based on the teachings of Muhammad that means recitations is the Quran. It is the central religious text of Islam and is considered by Muslims to be a revelation from God to the final prophet, Muhammad.
Islam.
Muhammad.
Islam
SUNNAH (the life and taughts of methods define by MUHAMMAD (PBUH).
Islam is based on the teachings of Muhammad.