Nabi memerintahkan untuk mencuci pakaian dan membersihkannya dari najis sebelum shalat
Imam Nasa'i : 392أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا يَحْيَى عَنْ سُفْيَانَ قَالَ حَدَّثَنِي أَبُو الْمِقْدَامِ ثَابِتٌ الْحَدَّادُ عَنْ عَدِيِّ بْنِ دِينَارٍ قَالَ سَمِعْتُ أُمَّ قَيْسٍ بِنْتَ مِحْصَنٍأَنَّهَا سَأَلَتْ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْ دَمِ الْحَيْضَةِ يُصِيبُ الثَّوْبَ قَالَ حُكِّيهِ بِضِلَعٍ وَاغْسِلِيهِ بِمَاءٍ وَسِدْرٍ
Narrated to us [Ubaidullah bin Sa'id] he said :Narrated to us [Yahya] from [Syufyan] he said : has told me [Abu Miqdam Thabit Al-Haddad] from [Adi bin Dinar] he said : I heard [Ummu Qais bin Mihshan], that he once asked Rasulullah peace be upon him about menstrual blood on clothes, so he answered, "Rub it with wood, then wash it with water and sidr (bidara leaves)."