Quran 2:236 — The Heifer (Al-Baqarah)

You commit no error by divorcing the women before touching them, or before setting the dowry for them. In this case, you shall compensate them—the rich as he can afford and the poor as he can afford—an equitable compensation. This is a duty upon the righteous.

[2:235] You commit no sin by announcing your engagement to the women, or keeping it secret. GOD knows that you will think about them. Do not meet them secretly, unless you have something righteous to discuss. Do not consummate the marriage until their interim is fulfilled. You should know that GOD knows your innermost thoughts, and observe Him. You should know that GOD is Forgiver, Clement.

[2:237] If you divorce them before touching them, but after you had set the dowry for them, the compensation shall be half the dowry, unless they voluntarily forfeit their rights, or the party responsible for causing the divorce chooses to forfeit the dowry. To forfeit is closer to righteousness. You shall maintain the amicable relations among you. GOD is Seer of everything you do.