Islam teaches strict and uncompromising monotheism, and Muhammad affirmed this concept of Tauhid.

The assertion that Islam teaches strict monotheism is challenged by examining the reported statements of Muhammad. In several hadiths, Muhammad forbade his followers from calling him 'Sayyid', emphasizing that Allah is the only true master. However, this raises questions when we consider Quranic references that designate others, such as John the Baptist, as 'Sayyid' as well. This inconsistency suggests that the concept of monotheism in Islam may not be as uncompromising as claimed. Furthermore, the Quran refers to Potiphar as 'Sayyid', which again complicates the notion of exclusive monotheistic titles. Thus, the evidence points to a more nuanced understanding of monotheism within Islamic teachings than what is often presented.