A woman named Mu'adhah narrates: I asked Sayyidah Aishah (may Allah be pleased with her) about the ritual bath (ghusl) after janabah, and she said: Nothing makes water impure.
Imam Ahmad recorded this narration, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الطهارة / 1067