The owner, but not the part-owner, may cohabit with any of his female slaves who is a Mohammadan, a Christian, or a Jewess, if he has not married her to another man; but not with two or more who are sisters, or who are related to each other in any of the degrees which would prevent their both being his wives at the same time if they were free: after having so lived with one, he must entirely relinquish such intercourse with her before he can do the same with another who is so related to her. He cannot have this intercourse with a pagan slave. A Christian or Jew may have slaves, but not enjoy the privilege above mentioned with one who is a Mohammadan. The master must wait a certain period (generally from a month to three months) after the acquisition of a female slave, before he can have such intercourse with her. If he find any fault in her within three days, he is usually allowed to return her. When a man, from being the husband, becomes the master, of a slave, the marriage is dissolved, and he cannot continue to live with her but as her master, enjoying, however, all a master's privileges; unless he emancipates her; in which case he may again take her as his wife with her consent. In like manner, when a woman, from being the wife, becomes the possessor, of a slave, the marriage is dissolved, and cannot be renewed unless she emancipates him, and he consents to the re-union. Complete and immediate emancipation is sometimes granted to a slave gratuitously, or for a future pecuniary compensation. It is conferred by means of a written document, or by a verbal declaration (expressed in the words, "Thou art free," or some similar phrase) in the presence of two witnesses, or by returning the certificate of sale obtained from the former owner. Future emancipation is sometimes covenanted to be granted on the fulfilment of certain conditions; and more frequently, to be conferred on the occasion of the owner's death. In the latter case, the owner cannot sell the slave to whom he has made this promise: and, as he cannot alienate by will more than one-third of the whole property that he leaves, the law ordains that, if the value of the said slave exceeds that portion, the slave must obtain and pay the additional sum. When a female slave has borne a child to her master, and he acknowledges the child to be his own, he cannot sell this slave, and she becomes free on his death.