In many Nigerian cultures, the payment of the Bride Price (Dowry) creates the marriage, and the *return* of that Bride Price is the act that legally and culturally ends it. This affidavit is sworn to confirm that this specific transaction has taken place.
Significance
Without the return of the bride price, some cultures (and courts interpreting customary law) still consider the couple married, regardless of how long they have lived apart. This has implications for the paternity of children born to the woman subsequently (they might be claimed by the former husband) and for inheritance. This affidavit is the proof needed to sever those ties completely.
Usage
It is sworn by the husband (who received the refund) or the wife's family representative (who paid the refund). It states clearly that the sum was returned and accepted on a specific date, thereby dissolving the union. It is used in customary courts or presented to marriage registries when one party seeks to contract a new statutory marriage.