Hadith 6:111
Yazid ibn Harun narrated to us, from Hisham, from al-Hasan, who said: He is washed the first washing with pure water. The second [washing] is with water and lotus leaves (sidr), and the third [washing] is with water and camphor. Then the camphor is taken and placed upon the places of his prostration.
حدثنا يزيد بن هارون عن هشام عن الحسن قال يغسل أول غسلة بماء قراح والثانية بماء وسدر والثالثة بماء وكافور ثم يؤخذ الكافور ويوضع على مواضع مساجده