Examples of vow to commit sin
Vows to commit sin:
This is every vow which involves disobedience to Allaah, such as vows to bring oil, candles or money to graves or shrines (mashhads), or to visit tombs and shrines of shirk. This is in some ways like making vows to idols. It is also forbidden to fulfil vows which promise to do some sin, like committing zinaa (adultery, fornication), drinking alcohol, stealing, taking orphans’ property, denying someone’s rights, or cutting family ties by cutting a certain relative off or not entering his house for no shar’i reason.