What is the waiting period (iddah) for a wife who was divorced twice, and her husband had not consummated the marriage after either the first or second divorce? And does her waiting period start anew, or does she continue the first waiting period?

The 'iddah (waiting period) of a woman is calculated from the time of the second divorce, and it does not build upon the 'iddah of the first divorce, whether the husband had intercourse with her after the رجعة (revocable return) or not. The 'iddah of a divorced woman is three menstrual cycles if she menstruates, or by giving birth for a pregnant woman, or by the passing of three months for a young girl who has not yet menstruated or an elderly woman who has despaired of menstruation.