Hadith 3:245
She also said:
The Prophet said to me, “Get me the mat from the mosque,” and when I replied that I was menstruating, he said, “Your menstruation is not in your hand.” Muslim transmitted it.
وَعَنْهَا قَالَتْ: قَالَ لِي النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «نَاوِلِينِي الْخُمْرَةَ مِنَ الْمَسْجِدِ» . فَقُلْتُ: إِنِّي حَائِضٌ فَقَالَ: «إِنَّ حَيْضَتَكِ لَيْسَتْ فِي يدك» . رَوَاهُ مُسلم
Original Reference: Mishkat al-Masabih 549