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:829Ḥajjāj b. Nuṣayr > Qurrah > al-Ḍaḥḥāk > Āmraʾah Saʾalath > Innī Āmraʾah Ustaḥāḍ

[Machine] "If you see foolish blood, then hold on to the days of your readings."  

الدارمي:٨٢٩حَدَّثَنَا حَجَّاجُ بْنُ نُصَيْرٍ حَدَّثَنَا قُرَّةُ عَنِ الضَّحَّاكِ أَنَّ امْرَأَةً سَأَلَتْهُ فَقَالَتْ إِنِّي امْرَأَةٌ أُسْتَحَاضُ فَقَالَ

«إِذَا رَأَيْتِ دَمًا عَبِيطًا فَأَمْسِكِي أَيَّامَ أَقْرَائِكِ»