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:1122ʿUbaydullāh > ʿUthmān b. al-Aswad > Saʾalt Mujāhid > Āmraʾah Raʾat al-Ṭuhr Ayaḥil Lizawjihā > Yaʾtīwahā Qabl > Taghtasil

[Machine] "Until the prayer is established for it."  

الدارمي:١١٢٢أَخْبَرَنَا عُبَيْدُ اللَّهِ حَدَّثَنَا عُثْمَانُ بْنُ الْأَسْوَدِ قَالَ سَأَلْتُ مُجَاهِدًا عَنْ امْرَأَةٍ رَأَتِ الطُّهْرَ أَيَحِلُّ لِزَوْجِهَا أَنْ يَأْتِيَهَا قَبْلَ أَنْ تَغْتَسِلَ قَالَ

«لَا حَتَّى تَحِلَّ لَهَا الصَّلَاةُ»