I think we are both right. What you refer to is the "hadith". A text that serves as a code of conduct and basically relates to situations during the life of muhammad. Muslims use it as a reference for how islam is imbodied in their daily life. Muslims do not believe this is the word of god.

The quran on the other hand is considered to be an unadultered revealed message and the method and dates i mention above are related to this.