عن أُمِّ عَطِيَّةَ رَضي الله عنها، وكَانَتْ بايَعَت النبيَّ صلى الله عليه وسلم، قالت:
كُنَّا لا نَعُدّ الكُدرَةَ والصُّفْرَةَ بعدَ الطُّهرِ شيئًا.
[صحيح] - [رواه أبو داود بهذا اللفظ، ورواه البخاري بدون زيادة (بعد الطهر)] - [سنن أبي داود: 307]
المزيــد ...
’Umm ‘Atiyyah (may Allah be pleased with her), the one who pledged allegiance to the Prophet (may Allah's peace and blessings be upon him), reported:
After becoming pure (from menstruation), we would not consider brownish and yellowish discharges to be of any significance.
[Authentic hadith] - [Literally narrated by Abu Daoud but narrated by Bukhari without the words, "After purification"] - [Sunan Abu Daoud - 307]
The female Companion ’Umm ‘Atiyyah (may Allah be pleased with her) reported that after attaining purity from menstruation, women, during the lifetime of the Prophet (may Allah's peace and blessings be upon him), would not consider the fluid discharged from the vagina - which tends to be blackish or yellowish - to be menses. Hence, such a discharge did not stop them from praying or fasting.