Is the presence of intention a prerequisite for the validity of a vow's occurrence, or does a person become bound by it merely by uttering the word "I vowed" inadvertently, without prior intention?

One who utters a vow unintentionally, as if their tongue slips, is not bound by anything. However, for one who intends the utterance but not the meaning, such as a jester or one at play, their vow is valid and binding because they intended the pronouncement. This is supported by the statement of Umar: "Four things are binding in all circumstances: emancipation, divorce, marriage, and vows."