Make vows only when necessary; keep your promises; avoid sinfulness; seek forgiveness from Allah when needed; fulfill your obligations even if difficult at times .

This hadith teaches us that it is not permissible to make a vow or promise to do something sinful. Making such a vow would be considered disobedience and would require an expiation, which in this case is the same as for breaking an oath. An oath or pledge can be made in many different ways, including verbally or through writing. It could also involve making a promise with Allah or another person. In any case, if someone makes a pledge of disobedience then they must repent and seek forgiveness from Allah by performing the prescribed expiation. This hadith also serves as reminder that we should always strive to keep our promises and fulfill our obligations, even if they are difficult at times.