He never bought, sold or captured slaves. Yes, he may bought them, but he bought their freedom. You have no knowledge of Islam. The TRUTH was, Hazrat Muhammad (saw) was such a humble and noble person that the slaves didn't want to leave him. Look how the western world turned and twisted the story, just to put Islam in a bad light.
I am no mufti, but I know enough about Islam to know of what I speak here. I know Muhammad was humble and noble. I know he advocated the freeing of slaves. I know he brought humanity to slavery that did not exist before him.
You should be concerned with those who advocate crack ideas in the name of Islam, and not me. They are turning and twisint the story, putting Islam in a bad light, not me.