مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 550
Purification
Menstruation - Section 1
وَعَنْ مَيْمُونَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُصَلِّي فِي مِرْطٍ بَعْضُهُ عَلَيَّ وَبَعْضُهُ عَلَيْهِ وَأَنا حَائِض
Maimuna said, “God’s messenger used to pray in a woollen garment which was partly over him and partly over me while I was mentruat- ing.” (Bukhari and Muslim.)
Mishkat al-Masabih, 550مُتَّفَقٌ عَلَيْهِ (الألباني)