Make promises only when you mean them; Do not make promises out of anger; Fulfill your promises if you make them; Pay the penalty for breaking your promise if you cannot fulfill it; Be honest with yourself and others; Keep your word no matter what happens; Respect yourself by keeping your word even when it's hard to do so.

This hadith explains that making a vow when one is angry is not valid and its expiation is the same as that for an oath. An oath or a vow can be made to do something or to abstain from doing something. It could be made out of love, fear or even anger. However, if it was made out of anger then it would not be considered valid and would need to be expiated like an oath. This means that one must fulfill what they have vowed or pay the penalty for breaking their promise which could include feeding ten poor people or fasting for two consecutive days etc., depending on what was promised in the first place.