Does an increase in the dower (mahr) agreed upon after the marriage contract take effect as part of the dower?

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An increase made to the specified dower after the contract is binding and is considered part of the dower. This is the position stated by Ahmad. If the husband divorces the wife before consummation, she is entitled to half of the original dower and half of the increase. This is also the view held by Abu Hanifa. The evidence supporting this is the verse: {There is no blame upon you for what you agree upon after the obligation} [Quran 4:24]. Furthermore, the period after the contract is a time for establishing the dower, making the condition of increase equivalent to the condition at the time of the contract. The binding nature means the increase acquires the legal rulings of the dower, such as being halved upon divorce before consummation, and it does not require the conditions of a gift.