(133) باب الْمَرْأَةِ تَغْسِلُ ثَوْبَهَا الَّذِي تَلْبَسُهُ فِي حَيْضِهَا
This tradition has been transmitted by Hisham through a different chain of narrators to the same effect:
Rub it off (with a stone), and then scratch it (with finger) by pouring water, then sprinkle water upon it.
Reference: Sunan Abi Dawud 362
In-book reference: Book 1, Hadith 362
English translation: Book 1, Hadith 362