Questions and Answers on Islamic Doctrine
Chapter 2: Belief in Prophets and Missions
Question 13: Is the Muslim entitled to blend his/her faith with other faiths or creeds?
Answer 13: In no way should a Muslim adopt other creeds or principles which conflict with the fundamentals underlying the Islamic doctrine. Monotheism runs counter to polytheism, nor does sunna (Prophet’s words and deeds) agrees with innovations. Likewise, the love of God is incompatiable with the love of some other power, etc.