Is my relative considered divorced after hearing the news of her divorce from her husband's brother's wife, who conveyed to her that her husband asked her to inform her of her divorce, especially since he denies uttering the divorce, and this is the third divorce—if it is valid?

The fundamental principle when spouses dispute the occurrence of divorce is that the husband's word is accepted, unless the wife provides evidence of the divorce. According to the majority of scholars, evidence for divorce consists of two just male witnesses. The testimony of women in this matter is not accepted, except by those who accept it, and the statement of a single woman is not sufficient. Therefore, as long as the husband denies the divorce and there is no evidence against him, the wife remains under his marital bond. Issues involving disputes are referred to the Shariah judge for a ruling.