Translation of the verse 166 from Surah al-‘Imran : Number of verses 200 - - page 72 - Part 4.
And what you suffered (of the disaster) on the day (of the battle of Uhud when) the two armies met, was by the leave of Allah, in order that He might test the believers.
And what struck you on the day the two armies met was by permission of Allah that He might make evident the [true] believers.
(3:166) What befell you on the day when the two hosts met was by the leave of Allah, and in order that He might mark out those who believe