Translation:

237. And if ye divorce them before consummation but after the fixation of a dower for them then the half of the dower (is due to them) unless they remit it. Or (the man's half) is remitted by him in whose hands is the marriage tie; and the remission (of the man's half) is the nearest to righteousness. And do not forget liberality between yourselves. For Allah sees well all that ye do.

Notes (Tafseer)

269. The law declares that in such a case half the dower fixed shall be paid by the man to the woman. But it is open to the woman to remit the half due to her or to the man to remit the half which he is entitled to deduct, and thus pay the whole.

270. Him in whose hands is the marriage tie: According to Hanafi doctrine this is the husband himself, who can ordinarily by his act dissolve the marriage. It therefore behooves him to be all the more liberal to the woman and pay her the full dower even if the marriage was not consummated.