It is narrated from Sayyiduna ‘Uwain bin Sa‘idah Ansari ‘Ajlani (may Allah be pleased with him) that the Noble Prophet (peace and blessings of Allah be upon him) said to the people of Quba:“Indeed, Allah Almighty has praised you greatly regarding purity.”Then he recited this verse «‏‏‏‏فِيهِ رِجَالٌ يُحِبُّونَ أَن يَتَطَهَّرُوا ۚ وَاللَّهُ يُحِبُّ الْمُطَّهِّرِينَ» ‏‏‏‏ [ سورة التوبة ] “In it are men who love to purify themselves, and Allah loves those who purify themselves.”Then the Prophet (peace and blessings of Allah be upon him) asked them:“What is that purity? (for which Allah Almighty has praised you so much)”They replied: We do not know of anything except that there were some Jews who were our neighbors, and they used to wash their backsides after relieving themselves, so we also started washing our backsides (while performing istinja) as they used to wash.

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that when the Messenger of Allah (peace and blessings be upon him) would go out to relieve himself, I would bring water to him, and he (peace and blessings be upon him) would perform istinja with it and wash his back.

It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that when the Prophet Muhammad (peace and blessings be upon him) would go to relieve himself, I would go with him carrying a stick and a water vessel. When he (peace be upon him) would come out (after relieving himself), he would perform istinja (cleaning) with water and make ablution from the water vessel.

Sayyiduna Abu Mu'adh (may Allah be pleased with him) narrates that I heard Sayyiduna Anas (may Allah be pleased with him) saying that when the Messenger of Allah (peace and blessings be upon him) would go to relieve himself, I and another boy would follow him carrying a water vessel. Imam Abu Bakr (may Allah have mercy on him) says that this Abu Mu'adh is 'Ata bin Abi Maymunah.

Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that when the Messenger of Allah (peace and blessings be upon him) would enter the toilet, I and another boy like me would carry a water vessel and take it to him. The Prophet (peace and blessings be upon him) would perform istinja (cleaning) with water.

It is narrated from Sayyidah Aisha (may Allah be pleased with her) that the Prophet Muhammad (peace and blessings be upon him) said: "Ten acts are from the natural disposition (fitrah): trimming the mustache, putting water into the nose (and cleaning it), using the miswak, letting the beard grow, plucking the armpit hair, removing the pubic hair, performing istinja (cleaning oneself after relieving oneself), (or sprinkling water on the private part after ablution), trimming the nails, and washing the joints of the fingers." In his narration, Abda says: I do not know what the tenth act is, except that it might be rinsing the mouth. In Waki’s narration, Mus’ab said: I forgot the tenth act, perhaps it is rinsing the mouth. Waki’ says: «‏‏‏‏اِنتقَاصُ الْمَاءَ» ‏‏‏‏ "The reduction of water" means that when one sprinkles water on his private part, the drops of urine will stop coming out. (The Imam says) Ibn Rafi’ and Sufyan did not mention the tenth act, nor did they mention it while expressing doubt.

Hazrat Ibrahim bin Jarir narrates from his father that the Prophet Muhammad (peace be upon him) entered a thicket and relieved himself. Then Sayyiduna Jarir (may Allah be pleased with him) brought a vessel of water to the Prophet (peace be upon him). The Prophet (peace be upon him) performed istinja with the water. He says that the Prophet (peace be upon him) also rubbed his hand with soil.

Sayyiduna Abu Hurairah (may Allah be pleased with him) says that I went to Sayyidah Aisha (may Allah be pleased with her), and I heard her saying that when the Messenger of Allah (peace and blessings of Allah be upon him) would come out of the toilet, he would say «‏‏‏‏غُفْرَانَكَ» ‏‏‏‏ "O Allah, I seek Your forgiveness." (The Imam says) Muhammad bin Aslam narrated to us from Ubaidullah bin Musa, and he narrated from Isra'il in the same manner.