Sahih al-Bukhari · The Book of Jihad (Fighting For Allah’S Cause)
183- بَابُ مَنْ تَأَمَّرَ فِي الْحَرْبِ مِنْ غَيْرِ إِمْرَةٍ إِذَا خَافَ الْعَدُوَّ:
(183) Chapter. (It is permissible for) somebody to take over the leadership of the army during a battle with being appointed when there is danger from the enemy.
1 hadith · references 3063–3063
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