Breaking A Vow / Manaat That Has Shirk
Thaabit ibn al-Dahhaak said: “A man vowed to sacrifice a camel in Bawaanah (according to one report: because a male child had been born to him). He came to the Prophet (peace and blessings of Allaah be upon him) and said: ‘I have vowed to sacrifice a camel in Bawaanah.’ The Prophet (peace and blessings of Allaah be upon him) said: ‘Was there one of the idols of the Jaahiliyyah there that people used to worship?’ They said, ‘No.’ He asked, ‘Did they used to celebrate any of their festivals there?’ They said, ‘No.’ The Messenger of Allaah (peace and blessings of Allaah be upon him) said: ‘Then fulfil your vow, for there is no fulfilment of vows that involve disobedience to Allaah, or that concern things that the son of Adam does not possess.’” (Reported by Abu Dawood, 2881). For more detail: https://islamqa.info/en/answers/2587/different-types-of-vows-nadhr-and-the-rulings-concerning-them