2 verses have
specified
in Edition Clear Qur'an by Talal Itani / Al-Baqara (The Cow)

2:184For a specified number of days. But whoever among you is sick, or on a journey, then a number of other days. For those who are able: a ransom of feeding a needy person. But whoever volunteers goodness, it is better for him. But to fast is best for you, if you only knew.

2:237If you divorce them before you have touched them, but after you had set the dowry for them, give them half of what you specified—unless they forego the right, or the one in whose hand is the marriage contract foregoes it. But to forego is nearer to piety. And do not forget generosity between one another. God is seeing of everything you do.