Marrying

Do not marry polytheistic women until they believe, for a believing slave-woman is better than a polytheist, even if she pleases you. Likewise, do not give your women in marriage to polytheistic men until they believe, for a believing slave-man is better than a polytheist, even if he pleases you.

2:221Wed not idolatresses till they believe; for lo! a believing bondwoman is better than an idolatress though she please you; and give not your daughters in marriage to idolaters till they believe, for lo! a believing slave is better than an idolater though he please you. These invite unto the Fire, and Allah inviteth unto the Garden, and unto forgiveness by His grace, and expoundeth His revelations to mankind that haply they may remember.

If any of you cannot afford to marry free, believing women, then marry from among the believing slave women under your care.

4:25And whoso is not able to afford to marry free, believing women, let them marry from the believing maids whom your right hands possess. Allah knoweth best (concerning) your faith. Ye (proceed) one from another; so wed them by permission of their folk, and give unto them their portions in kindness, they being honest, not debauched nor of loose conduct. And if when they are honourably married they commit lewdness they shall incur the half of the punishment (prescribed) for free women (in that case). This is for him among you who feareth to commit sin. But to have patience would be better for you. Allah is Forgiving, Merciful.

Allah does not hold you accountable for thoughtless oaths, but He does for those made with intent. The expiation is feeding ten needy people, clothing them, or freeing a slave. If unable, then fasting for three days. Keep your oaths, thus Allah makes His commands clear so you may be grateful.

5:89Allah will not take you to task for that which is unintentional in your oaths, but He will take you to task for the oaths which ye swear in earnest. The expiation thereof is the feeding of ten of the needy with the average of that wherewith ye feed your own folk, or the clothing of them, or the liberation of a slave, and for him who findeth not (the wherewithal to do so) then a three days' fast. This is the expiation of your oaths when ye have sworn; and keep your oaths. Thus Allah expoundeth unto you His revelations in order that ye may give thanks.