"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.'"
أَنَّهَا سَأَلَتْ رَسُولَ اللَّهِ ﷺ عَنْ دَمِ الْحَيْضِ يُصِيبُ الثَّوْبَ قَالَ حُكِّيهِ بِضِلَعٍ وَاغْسِلِيهِ بِمَاءٍ وَسِدْرٍ