It was narrated that 'Adi bin Dinar said:
"I heard Umm Qais bint Mihsan say that she asked the Messenger of Allah (ﷺ) about menstrual blood that gets on one's clothes. He said: 'Scratch it with a stick and wash it with water and lotus leaves.'" (IT)
English reference (IT): Vol. 1, Book 1, Hadith 293 (IT)
Arabic reference (IT): Book 1, Hadith 294 (IT)