What did the Prophet Muhammad (peace be upon him) say about those who associate others in worship with Allah compared to the believers?
 Narrated `Abdullah:                     While we were in the company of the Prophet in a tent he said, ''Would it please you to be one fourth of the people of Paradise?" We said, "Yes." He said, "Would It please you to be one-third of the people of Paradise?" We said, "Yes." He said, "Would it please you to be half of the people of Paradise?" We said, "Yes." Thereupon he said, "I hope that you will be one half of the people of Paradise, for none will enter Paradise but a Muslim soul, and you people, in comparison to the people who associate others in worship with Allah, are like a white hair on the skin of a black ox, or a black hair on the skin of a red ox."