It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) concerning the saying of Allah, the Mighty and Majestic, "And when his Lord tested Ibrahim with certain words" [Surah al-Baqarah: 124] , that Allah tested him with ten practices of purification: five in the head and five in the rest of the body. In the head: trimming the moustache, rinsing the mouth, rinsing the nose with water, using the tooth-stick (miswak), and parting the hair of the head. In the body: clipping the nails, shaving the pubic hair, circumcision, plucking the armpit hair, and washing the places of urine and stool with water (istinja'). This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.