Imam Malik (may Allah have mercy on him) was informed that Sa'id bin al-Musayyib, Sulayman bin Yasar, and Ibn Shihab used to say: A woman who obtains khul' should observe 'iddah for three periods of purity, just as a divorced woman observes 'iddah.
Imam Malik, may Allah have mercy on him, said: When a woman gives some wealth on the condition that her husband divorces her, and the husband gives her three divorces at once, then three divorces will take effect. And if he gives one divorce and remains silent, then gives a second or third divorce, the divorce given after remaining silent will be void.
Imam Malik, may Allah have mercy on him, said: If a woman ransoms herself with wealth, she cannot return to her husband unless she contracts a new marriage. Then, if she marries the same husband and he divorces her before consummation, she does not have to observe a new waiting period, but rather completes the first waiting period.
Imam Malik, may Allah have mercy on him, said: This is what I have heard as good.
Hadith Referenceموطا امام مالك رواية يحييٰ / كتاب الطلاق / 1168