2 - The Book of Waters from Al-Mujtaba

Allah, Glorified and Exalted, said: {And We sent down from the sky pure water} [Al-Furqan: 48].
And He, Glorified and Exalted, said: {And He sends down upon you from the sky water to purify you with it} [Al-Anfal: 11].
And He, Exalted, said: {And you find no water, then seek clean earth and wipe over your faces and hands with it} [An-Nisa: 43].

325 - Suwayd ibn Nasr informed us, saying: Abdullah ibn al-Mubarak narrated to us, from Sufyan, from Simak, from Ikrimah, from Ibn Abbas, that one of the wives of the Prophet, peace and blessings be upon him, performed a ritual bath (ghusl) from major impurity (janabah), and the Prophet, peace and blessings be upon him, performed ablution (wudu) with her leftover water. When she mentioned that to him, he said: "Indeed, nothing makes water impure."(1)

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(1) Authentic due to corroborating evidence; Simak — Ibn Harb — has some inconsistency in his narration from Ikrimah, but the rest of its narrators are trustworthy. Sufyan is al-Thawri.
It was also recorded by Ahmad (2102) and Ibn Hibban (1242) via two chains from Abdullah ibn al-Mubarak with this chain.
It was also recorded by Ahmad (2100), (2101), (2566), (2805), and (2806) via multiple routes from Sufyan al-Thawri with it, and in narration (2101) he limited it to the first part, and in narrations (2100) and (2806) to the marfu' wording only.
Abdullah ibn Ahmad (2807) said: My father said regarding his hadith: Waki' narrated it to us in "Al-Musannaf" from Sufyan, from Simak, from Ikrimah, then afterward he made it from Ibn Abbas.
It was also recorded by Abu Dawud (68), al-Tirmidhi (65), Ibn Majah (370), and Ibn Hibban (1241), (1261), and (1269) via the route of Abu al-Ahwas, from Simak, with it, and the marfu' wording with them — except for the two narrations of Ibn Hibban (1241) and (1269) — is: "Indeed, water does not become junub."
The hadith of Abu Sa'id al-Khudri that follows after it corroborates it.
His statement: "Indeed, nothing makes water impure" — al-Sindi said: That is, when a person in a state of major impurity (junub) or minor impurity (muhdith) uses some of it, the remainder does not become impure due to the janabah or hadath of the one who used it. On this basis, this hadith falls outside the scope of scholarly disagreement, which is whether water becomes impure by the falling of impurity into it or not, and what pertains to this issue. And Allah knows best.