Keep your promises/vows unless they are related to something forbidden in Islam or something from pre-Islamic era known as Jahiliyyah .

This hadith is about fulfilling vows and promises. It was narrated from Ibn Abbas that a man came to the Prophet and said he had vowed to offer a sacrifice at Buwanah. The Prophet asked him if he intended any action of ignorance period, which refers to pre-Islamic practices that were discouraged in Islam. When the man said no, the Prophet advised him to fulfill his vow. This hadith teaches us that we should keep our promises and vows, unless they are related to something forbidden in Islam or something from the pre-Islamic era known as Jahiliyyah. We should always strive for honesty and integrity in our words and actions so we can be trusted by others.