Quran 4:65—But no, by your Lord, they can have no Faith, until they make you (O Muhammad) judge in all disputes between them, and find in themselves no resistance against your decisions, and accept (them) with full submission.Moreover, Muhammad commanded his followers to address him directly in their prayers:
Quran 33:36—It is not fitting for a Believer, man or woman, when a matter has been decided by Allah and His Apostle to have any option about their decision: if any one disobeys Allah and His Apostle, he is indeed on a clearly wrong Path.
Sahih Muslim 798—Ibn Abbas reported: The Messenger of Allah used to teach us tashahhud just as he used to teach us a Sura of the Qur'an, and he would say: All services rendered by words, acts of worship, and all good things are due to Allah. Peace be upon you, O Prophet, and Allah's mercy and blessings. Peace be upon us and upon Allah's upright servants. I testify that there is no god but Allah, and I testify that Muhammad is the Messenger of Allah.To this day, Muslims around the world speak directly to Muhammad during their prayers, saying, "Peace be upon you, O Prophet." What kind of attributes would Muhammad need in order to hear these prayers?
And this is the religion that condemns other religions for idolatry?
For more on this topic, see the following articles by Sam Shamoun: