Is there an oath taken by other than Allah that requires expiation if one breaks it, or is repentance alone sufficient?

Question:
May Allah reward you, Your Eminence, father. The questioner says: If a person swears an oath by other than Allah the Exalted, does the oath become binding and does he have to pay the expiation, even though it is minor shirk (associating partners with Allah), or is he only required to repent?

Answer:
Repentance is required of him in any case. Some scholars hold that he must also pay the expiation in addition to repenting, but the correct view is that he does not have to pay an expiation.