2:48And beware of a Day when no soul will avail another in the least, nor will any intercession be accepted on its behalf, nor will any ransom be taken from it, nor will they be helped.

2:85But here you are, killing your own, and expelling a group of your own from their homes—conspiring against them in wrongdoing and hostility. And if they come to you as captives, you ransom them, although it was forbidden to you. Is it that you believe in part of the Scripture, and disbelieve in part? What is the reward for those among you who do that but humiliation in this life? And on the Day of Resurrection, they will be assigned to the most severe torment. God is not unaware of what you do.

2:123And beware of a Day when no soul will avail another soul in any way, and no ransom will be accepted from it, and no intercession will benefit it, and they will not be helped.

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.