Shah Muni- Another precursor to Sai Baba as mentioned in Marianne Warren's book Shirdi Sai Bab in the Light of Sufism

Shah Muni was a Muslim living, unlike Shekh Mahammad, during a time at the end of the eighteenth century, when Muslims lost power in Maharashtra. Unlike Shekh Mahammad who was a Muslim Pir with Hindu disciples, Shah Muni was a Muslim with a Hindu Guru. His stance was largely apologetic, being in a Hindu dominated environment, from his sayings and life, Shah Muni often had to apologize and explain being a Muslim.
At the same time, he actively believed, like Shekh Mahammad, that Islam did not naturally reject Hinduism, but creatively intertwined their histories:

"Mahavisnu, the Isvara, is the supreme ruler of the world. His rule stretches from this land (karmabhumi, India) to the milky primeval ocean of Mahavisnu who rests on the eternal serpant. Mahavisnu created Paighambar who descended to earth. From Paighambar, we find the spreading of Muslims (yavanas) throughout the world. Out of the millions of Gods (daivas) a select 80 thousand became wise Paighambars and established Islam (mlecca dharma). That sustainer of the world Narayana created the four sastras which the Muslims (yavanas) call the Qur'an. The Muslims (yavanas) read the Qur'an which is the word of God (Narayana)...The Muslims (yavanas) call Narayana the great Allah." (Warren 171)

Instead of using Islam as his base and seeing Hinduism as a strand of the original religion (meaning Islam in the sense before the institutional religion itself came to be), Shah Muni saw Hinduism as the root in which Islam came into existence.
Interestingly, Shah Muni also does not gloss over the Gods of Hinduism, but seems to see the base of all Narayana, who is identified as the same as Allah.
Also, being a Muslim, though Shah Muni was often apologetic about Islam, he does not deny the key aspects of the religion such as the Qur'an as the "word of God".