Explanation:

Essentials of Valid Khula: 1. Competence of Parties: Husband and wife must be of sound mind and must have attained the age of puberty. ... Free Consent: the offer and acceptance of Khula must be made with the free consent of the parties 3. Formalities: There should be an offer made by the wife to the husband. The offer of Khula must be accepted by the husband. Offer and acceptance may be either oral or in writing. The offer and acceptance must be made at one sitting, i.e. at one place of meeting. 4. Consideration: For her release the wife has to pay something to the husband as compensation It may be any sum of money or property.