What is the ruling on one who vowed to give charity every time he looked at something unlawful, then became unable to count the number of times he looked and to pay the resulting obligatory charities?

The vow made by the questioner is called a vow of obstinacy and anger, and its ruling is the same as that of an oath. The person who makes it has the choice between fulfilling it or atoning for it with an expiation for an oath. Since the questioner has already performed the expiation for an oath, there is no longer any blame on him regarding his vow. However, blame falls upon him for the forbidden looking, and he must repent from it.