Hadith 3:244
She also said, “The Prophet would recline on my lap when I was menstruating, then recite the Qur'an.” (Bukhari and Muslim.)
وَعَنْهَا قَالَتْ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يتكئ على حجري وَأَنا حَائِض ثمَّ يقْرَأ الْقُرْآن
Original Reference: Mishkat al-Masabih 548