وَكَانَ يُخْرِجُ رَأْسَهُ مِنَ الْمَسْجِدِ وَهْوَ مُعْتَكِفٌ فَأَغْسِلُهُ وَأَنَا حَائِضٌ.
صحیح بخاری · Hadith 2031
He also used to put his head out of the mosque while he was in I`tikaf, and I would wash it during my menses.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020