Mas’ala 87الأمShafi'ivol. 1, p. 23vol. 1, p. 23 وَإِنْ تَمَعَّطَ شَعْرُهُ فَإِنَّ شَعْرَهُ نَجِسٌ، Read the whole chapterCopy with source On the map: PurityCompare