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:842Marwān > Bukayr b. Maʿrūf > Muqātil b. Ḥayyān > Nāfiʿ > Ibn ʿUmar

[Machine] He used to say that a woman with istihaadah (irregular bleeding) should perform ghusl from one prayer to another. Marwan said, and this is the statement of Al-Awzaa'i.  

الدارمي:٨٤٢أَخْبَرَنَا مَرْوَانُ عَنْ بُكَيْرِ بْنِ مَعْرُوفٍ عَنْ مُقَاتِلِ بْنِ حَيَّانَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ

أَنَّهُ كَانَ يَقُولُ الْمُسْتَحَاضَةُ تَغْتَسِلُ مِنْ ظُهْرٍ إِلَى ظُهْرٍ قَالَ مَرْوَانُ وَهُوَ قَوْلُ الْأَوْزَاعِيِّ