one branch of students during their Ph.D. found that. Lord krishna is father of Muhhamad. According to them when Yavan king Narkasur(king of arabs) attacked on dwarka. shree krishan killed him. he offered his girl to marry to shree krishna. Muhhamad was born to them. lord krishna bless the son with spritual power and said you will rule the arabs.
Na yeh zaami thi aur naa aazman tha.......kyuda hukka pee raha tha,,,,,dhua se aasaman bana aur rakah se zamin......par yaaro ek baat mere saamjhe me nahi aaye