Sunan Abu Dawud 364
Purification (Kitab Al-Taharah)
حَدَّثَنَا النُّفَيْلِيُّ، حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ أَبِي نَجِيحٍ، عَنْ عَطَاءٍ، عَنْ عَائِشَةَ، قَالَتْ قَدْ كَانَ يَكُونُ لإِحْدَانَا الدِّرْعُ فِيهِ تَحِيضُ وَفِيهِ تُصِيبُهَا الْجَنَابَةُ ثُمَّ تَرَى فِيهِ قَطْرَةً مِنْ دَمٍ فَتَقْصَعُهُ بِرِيقِهَا .
Aishah said:One of us would have a shirt in which she would menstruate and in it she became sexually defiled. Then if she ever saw any drop of blood in it, she would rub it off by applying her saliva
Grading: Al-Albani: Sahih · Muhammad Muhyi Al-Din Abdul Hamid: Sahih · Shuaib Al Arnaut: Sahih · Zubair Ali Zai: Daif
Text from the public-domain hadith-api dataset. Numbering follows that dataset and can differ by a few from some printed editions — check the wording, not only the number.