يَا أَيُّهَا الَّذِينَ آمَنُوا خُذُوا حِذْرَكُمْ فَانفِرُوا ثُبَاتٍ أَوِ انفِرُوا جَمِيعًا (71)
(4:71) Believers! Always be on your guard against encounters. *101 Then (as circumstance demands) either advance in detachments or advance in a body.
*101). This discourse was revealed after the Battle of Uhud, when the tribes living around Madina had been greatly encouraged by the defeat of the Muslims. Thus dangers seemed to surround the Muslims on all sides. Day in and day out news poured in about the hostile intentions of one tribe after another. Reports came in of attacks mounted now in one area, and then in another. The Muslims were again and again the victims of treachery. Their preachers were invited to preach and then put to the sword. Beyond Madina, neither their lives nor their property was secure. Consequently the Muslims had to prepare themselves for a fierce struggle, for a tremendous, all-out effort to ensure that the Islamic movement would not be crushed.