Sorted:

What has come concerning the one who is not content with the swearing an oath by Allaah

Ruling on swearing by other than Allah

From Shirk is: Swearing an oath for other than Allaah

Expiating an oath on someone else’s behalf

Does retracting from an oath nullify it

Changing the conditions of a vow while maintaining it

Swearing an Oath by other than Allah

Fulfillment of vow to fast nine days a month

A person who cannot fulfill a vow that he made