Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:15403Abū al-Ḥasan al-Raffāʾ > ʿUthmān b. Muḥammad b. Bishr > Ismāʿīl al-Qāḍī > Ibn Abū Ūways > Ibn Abū al-Zinād from his father

[Machine] Regarding the jurists from the people of Al-Madina, they used to say that if a man divorces his wife while she is menstruating or in a state of postpartum bleeding, then she is required to observe three menstrual cycles in addition to the blood that she is currently experiencing.  

البيهقي:١٥٤٠٣وَأَخْبَرَنَا أَبُو الْحَسَنِ الرَّفَّاءُ نا عُثْمَانُ بْنُ مُحَمَّدِ بْنِ بِشْرٍ نا إِسْمَاعِيلُ الْقَاضِي نا ابْنُ أَبِي أُوَيْسٍ نا ابْنُ أَبِي الزِّنَادِ عَنْ أَبِيهِ

عَنِ الْفُقَهَاءِ مِنْ أَهْلِ الْمَدِينَةِ كَانُوا يَقُولُونَ مَنْ طَلَّقَ امْرَأَتَهُ وَهِيَ حَائِضٌ أَوْ هِيَ نُفَسَاءُ فَعَلَيْهَا ثَلَاثُ حِيَضٍ سِوَى الدَّمِ الَّذِي هِيَ فِيهِ