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Imam Darimi : 994

أَخْبَرَنَا سَعِيدُ بْنُ الرَّبِيعِ حَدَّثَنَا شُعْبَةُ عَنْ يَزِيدَ الرِّشْكِ قَالَ سَمِعْتُ مُعَاذَةَ الْعَدَوِيَّةَ عَنْ عَائِشَةَ قَالَتْ لَهَا امْرَأَةٌ الدَّمُ يَكُونُ فِي الثَّوْبِ فَأَغْسِلُهُ فَلَا يَذْهَبُ فَأُقَطِّعُهُ قَالَتْ الْمَاءُ طَهُورٌ

Narrated to us [Sa'id bin Ar rabi'] Narrated to us [Syu'bah] from [Yazid Ar Risyk] he said: I once heard [Mu'adzah Al 'Adawiyah] from [Aisyah]May Allah be pleased with her A woman said to him: "When blood gets on clothes, then I wash it (but) it doesn't come off, should I cut it?", he answered: "Water is holy, (certainly purifies)".