Muadhah said that Aishah was asked about (washing) the clothes of a menstruating woman smeared with blood. She said: She should wash it; in case mark is not removed she should change it by applying some yellow color. I had three menstruations together while I lives with the Messenger of Allah ﷺ, but I did not wash my clothes.
Explanation & Benefits
Shaykh Umar Farooq Saeedi
357. Commentary:
She did not wash it because the lower garment or sheet was not contaminated in any way. It is understood from this that if a garment is not contaminated in any way, then it is pure. Also, the sweat and saliva of a menstruating woman are pure. In the same way, there is no need to wash the rest of the clothes without cause.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 357