Ibn Salamah bin Al Akwa’ repoted on the authority of his father. A spy of the polytheists came to the Prophet ﷺ when he was on a journey. He sat near his Companions and then slipped away. The Prophet ﷺ said “look for him and kill him”. He said “I raced to him and killed him. I took his belongings which he (the Prophet) gave me. (Using translation from Abū Dāʾūd 2653)
أَتَى رَسُولَ اللهِ ﷺ عَيْنٌ مِنَ الْمُشْرِكِينَ وَهُوَ فِي سَفَرٍ قَالَ فَجَلَسَ فَتَحَدَّثَ عِنْدَ أَصْحَابِهِ ثُمَّ انْسَلَّ فَقَالَ النَّبِيُّ ﷺ اطْلُبُوهُ فَاقْتُلُوهُ قَالَ فَسَبَقْتُهُمْ إِلَيْهِ فَقَتَلْتُهُ وَأَخَذْتُ سَلَبَهُ