2-Surah Al-Baqarah ( The Cow ) 228
Divorced women remain in waiting for three periods, and it is not lawful for them to conceal what Allah has created in their wombs if they believe in Allah and the Last Day. And their husbands have more right to take them back in this [period] if they want reconciliation. And due to the wives is similar to what is expected of them, according to what is reasonable. But the men have a degree over them [in responsibility and authority]. And Allah is Exalted in Might and Wise.
وَالْمُطَلَّقَاتُ يَتَرَبَّصْنَ بِأَنفُسِهِنَّ ثَلَاثَةَ قُرُوءٍ ۚ وَلَا يَحِلُّ لَهُنَّ أَن يَكْتُمْنَ مَا خَلَقَ اللَّهُ فِي أَرْحَامِهِنَّ إِن كُنَّ يُؤْمِنَّ بِاللَّهِ وَالْيَوْمِ الْآخِرِ ۚ وَبُعُولَتُهُنَّ أَحَقُّ بِرَدِّهِنَّ فِي ذَٰلِكَ إِنْ أَرَادُوا إِصْلَاحًا ۚ وَلَهُنَّ مِثْلُ الَّذِي عَلَيْهِنَّ بِالْمَعْرُوفِ ۚ وَلِلرِّجَالِ عَلَيْهِنَّ دَرَجَةٌ ۗ وَاللَّهُ عَزِيزٌ حَكِيمٌ
Quran's Tafhim ( explanation)
*249). Jurists disagree about the legal import of this verse. According to some, as long as a woman has not completed her third menstrual period repudiation will not have the effect of irrevocable divorce. This is the view of Abu Bakr, 'Umar, 'Ali, Ibn 'Abbas, Abu Musa al-Ash'arl, Ibn Mas'ud and several distinguished Companions of the Prophet. This is also the accepted doctrine of the Hanafi jurists. On the other hand, another group of jurists is of the view that, as soon as the third monthly period of a woman begins, the husband ceases to have the right to revoke the divorce. This is the view of , 'A'ishah, Ibn 'Umar and Zayd ibn Thabit, and has been accepted by, the Shafi'i and Maliki jurists. It should be clear, however, that this injunction is applicable only when the husband has pronounced single or double divorce. In case of triple divorce, the husband ceases to have the right of revocation. (See Jassas, vol. 1. pp. 364 ff. - Ed.)