To BAN that which Allah made halal, and his Messenger practiced with vigor is the same as allowing that which Allah made haram!
Qur'an (33:50) - "O Prophet! We have made lawful to thee thy wives to whom thou hast paid their dowers; and those (slaves) whom thy right hand possesses out of the prisoners of war whom Allah has assigned to thee"Qur'an (4:24) - "And all married women (are forbidden unto you) save those (captives) whom your right hands possess." Even sex with married slaves is permissible.The value of a slave (humans are not created equal) is confirmed by Allah's mighty laws:Qur'an (2:178) - "O ye who believe! Retaliation is prescribed for you in the matter of the murdered; the freeman for the freeman, and the slave for the slave, and the female for the female."
Bukhari (80:753) - "The Prophet said, 'The freed slave belongs to the people who have freed him.'"
Bukhari (52:255) - The slave who accepts Islam and continues serving his Muslim master will receive a double reward in heaven.
Bukhari (41.598) - Slaves are property. They cannot be freed if an owner has outstanding debt, but rather used to pay off the debt.
Bukhari (62:137) - An account of women taken as slaves in battle by Muhammad's men after their husbands and fathers were killed. The woman were raped with Muhammad's approval.
Muslim 4112 - A man freed six slaves on the event of his death, but Muhammad reversed the emancipation and kept four in slavery to himself. He cast lots to determine which two to free.
Bukhari (47:743) - Muhammad's own pulpit - from which he preached Islam - was built with slave labor on his command.
Thus, as any Muslim can see, slavery is not only allowed by Allah, it was liberally practiced by the slave trader, master and slave raider, Muhammad.
JIHAD to save the GLORY of ISLAMIC SLAVERY!