Can I return to the College of Pharmacy after failing in the College of Medicine and signing a pledge not to demand to study in it again, knowing that the pledge was vague?

Covenants must be fulfilled, for Allah has commanded it. Breaking covenants is a sign of the hypocrites, while fulfilling them is a characteristic of the believers. It is not permissible for a Muslim not to fulfill their covenant when they are able to, unless it is without the consent of the other party. If returning to pharmacy is without the approval of the contracting party, then this is considered a breach of covenant and is not permissible. However, if it is with their consent, then there is no harm. In both professions, dentistry and pharmacy, one can fear Allah and distance oneself from temptation.