وَعَنْ سَلَمَةَ بْنِ الْأَكْوَعِ
قَالَ أَتَى النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَيْنٌ مِنَ الْمُشْرِكِينَ وَهُوَ فِي سَفَرٍ فَجَلَسَ عِنْدَ أَصْحَابِهِ يَتَحَدَّثُ ثُمَّ انْفَتَلَ فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «اطْلُبُوهُ وَاقْتُلُوهُ». فَقَتَلْتُهُ فنفَّلَني سلبَه
A spy of the polytheists who came to the Prophet (sallallahu alayhi wa sallam) when he was on a journey sat and talked with his companions and afterwards withdrew. The Prophet (sallallahu alayhi wa sallam) then said, “Look for him and kill him,” so I killed him and the Prophet (sallallahu alayhi wa sallam) gave me the spoil taken from him.
Mishkat al-Masabih 3799, Book 20, Jihad, Hadith 173. 1 min read