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:875Ḥajjāj b. Minhāl > Ḥammād > Qatādah And Qays b. Saʿd > ʿAṭāʾ Annahumā

[Machine] About the issue of menstruation, they said concerning the pre-dawn prayer when one menstruates, she must perform ritual bathing and they said, "Abstain from prayer just as a woman abstains from intimate relations with her husband."  

الدارمي:٨٧٥أَخْبَرَنَا حَجَّاجُ بْنُ مِنْهَالٍ حَدَّثَنَا حَمَّادٌ عَنْ قَتَادَةَ وَقَيْسِ بْنِ سَعْدٍ

عَنْ عَطَاءٍ أَنَّهُمَا قَالَا فِي الْبِكْرِ إِذَا نَفِسَتْ فَاسْتُحِيضَتْ قَالَا «تُمْسِكُ عَنِ الصَّلَاةِ مِثْلَ مَا تُمْسِكُ الْمَرْأَةُ مِنْ نِسَائِهَا»