Islamic Law of Mahr on divorced women before her husbands touch them...!

Surah Al-Baqarah [2:236-237]

There is no blame on you if you divorce women have not touched nor specified for them an obligation (Mahr). But give them [a gift of] compensation - the wealthy according to his capability and the poor according to his capability - a provision according to what is acceptable, a duty upon the doers of good.

If you divorce them before you have touched them and you have already specified for them an obligation (Mahr), then (pay the) half of that which you specified, unless they (the women) agree to forgo it, or he agrees to forgo it in whose hand is the marriage tie. To forgo is nearer to piety. And forget not kindness among yourselves. Allah is Seer of what you do.