A Muslim marriage is not a 'sacrament', but a simple, legal agreement in which either partner is free to include conditions. Marriage customs thus vary widely from country to country. As a result, divorce is not common, although it is not forbidden as a last resort. According to Islam, no Muslim girl can be forced to marry against her will: her parents will simply suggest young men they think may be suitable.
"When a person dies, his works end, except for three: ongoing charity, knowledge that is benefited from, and a righteous child who prays for him."
Prophet Mohammed (PBUH)
"The best of what a man leaves behind are three: a righteous child who supplicates for him, ongoing charity the reward of which reaches him, and knowledge that is acted upon after him."
Sunan Ibn Mājah
"Every day two angels come down from Heaven and one of them says, 'O Allah! Compensate every person who spends in Your Cause,' and the other (angel) says, 'O Allah! Destroy every miser.'"
Sahih Bukhari