Imam Ahmad, Al-Nasa i, and Ibn Majah narrated, in a report that was classed as Sahih by Ibn Hibban, that Abu Umamah Sahl ibn Hanif said: Abu Sahl ibn Hanif did Ghusl in Al-Kharar (Al-Kharar: it is said that this was a well in Madinah, or one of its valleys). He took off his cloak, and 'Amir ibn Rabi'ah was looking at him. Sahl was very white, with beautiful skin. 'Amir said: "I have never seen anything (as beautiful) as this, not even the skin of a virgin." And Sahl fell to the ground and became very sick. The Messenger of Allah (Peace and Blessing upon Him) was told about his sickness, and it was said to him: "He cannot raise his head." He said:Do you accuse anyone with regard to him?"They said, "'Amir ibn Rabi'ah." The Messenger of Allah (Peace and Blessing upon Him) called him and rebuked him strongly, then he said:

"Why would one of you kill his brother? Why did you not pray for blessing for him? Wash yourself for him." So 'Amir washed his face, hands, forearms, knees and the sides of his feet, and inside his Izar (lower garment) in a vessel, then it was poured over him from behind, and Sahl recovered straight away.  Muwatta' Malik, 2/938