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.
darimi:942ʿAffān b. Muslim > Muḥammad b. Dīnār > Yūnus

[Machine] About the waiting period (Iddah) of a divorced woman: If a woman experiences menstruation after the divorce, she should wait for one year. If she does not experience menstruation within that year, she should wait for three more months. If she still does not experience menstruation within that time, her waiting period is deemed complete.  

الدارمي:٩٤٢أَخْبَرَنَا عَفَّانُ بْنُ مُسْلِمٍ حَدَّثَنَا مُحَمَّدُ بْنُ دِينَارٍ حَدَّثَنَا يُونُسُ

عَنِ الْحَسَنِ فِي الْمُطَلَّقَةِ الَّتِي ارْتِيبَ بِهَا «تَرَبَّصُ سَنَةً فَإِنْ حَاضَتْ وَإِلَّا تَرَبَّصَتْ بَعْدَ انْقِضَاءِ السَّنَةِ ثَلَاثَةَ أَشْهُرٍ فَإِنْ حَاضَتْ وَإِلَّا فَقَدِ انْقَضَتْ عِدَّتُهَا»