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:886Muḥammad b. ʿĪsá > Ḥammād b. Zayd > Yaḥyá b. Saʿīd > Mawlāh ʿAmrah > Kānat ʿAmrah Taʾmur al-Nisāʾ

[Machine] "Do not wash until the cotton comes out white."  

الدارمي:٨٨٦أَخْبَرَنَا مُحَمَّدُ بْنُ عِيسَى حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ عَنْ يَحْيَى بْنِ سَعِيدٍ عَنْ مَوْلَاةِ عَمْرَةَ قَالَتْ كَانَتْ عَمْرَةُ «تَأْمُرُ النِّسَاءَ

أَنْ لَا يَغْتَسِلْنَ حَتَّى تَخْرُجَ الْقُطْنَةُ بَيْضَاءَ»