It is recorded in the Two Sahih [Bukhari & Muslim] that when he was asked about the injuries the Messenger sustained [in Uhud], Sahl bin Sa`d said, "The face of Allah's Messenger was injured, his front tooth was broken and his helmet was smashed on his head. Therefore, Fatimah, the daughter of Allah's Messenger washed off the blood while `Ali was pouring water on her hand. When Fatimah saw that the bleeding increased more by the water, she took a mat, burnt it, and placed the ashes in the wound of the Prophet and the blood stopped oozing out.''
Allah said next,
[فَأَثَـبَكُمْ غَمّاً بِغَمٍّ]
(There did Allah give you one distress after another) [3:153],
He gave you grief over your grief. Ibn `Abbas said, `The first grief was because of the defeat, especially when it was rumored that Muhammad was killed. The second grief was when the idolators went up the mount and The Messenger of Allah said, `O Allah! It is not for them to rise above us.'''
`Abdur-Rahman bin `Awf said, "The first distress was because of the defeat and the second when a rumor started that Muhammad was killed, which to them, was worse than defeat.'' Ibn Marduwyah recorded both of these. Mujahid and Qatadah said, "The first distress was when they heard that Muhammad was killed and the second when they suffered casualties and injury.'' It has also been reported that Qatadah and Ar-Rabi` bin Anas said that it was the opposite [order]. As-Suddi said that the first distress was because of the victory and booty that they missed and the second because of the enemy rising above them (on the mount). Allah said,
[لِّكَيْلاَ تَحْزَنُواْ عَلَى مَا فَاتَكُمْ]
(by way of requital to teach you not to grieve for that which had escaped you), for that you missed the booty and triumph over your enemy.
[وَلاَ مَآ أَصَـبَكُمْ]
(nor for what struck you), of injury and fatalities, as Ibn `Abbas, `Abdur-Rahman bin `Awf, Al-Hasan, Qatadah and As-Suddi stated. Allah said next,
[وَاللَّهُ خَبِيرٌ بِمَا تَعْمَلُونَ]
(And Allah is Well-Aware of all that you do.) all praise is due to Him, and thanks, there is no deity worthy of worship except Him, the Most High, Most Honored.