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.
Sunan Abi Dawud Book 15, Hadith 177
← Previous Hadith The Messenger of Allah (ﷺ) commanded to kill him: he was a spy of AbuSufyan and an ally of a man of the Ansar. He passed a circle of the Ansar and said: I am a Muslim. A man from the Ansar said, Messenger of Allah, he is saying that he is a Muslim. The Messenger of Allah (ﷺ) said: There are people among you in whose faith we trust. Furat ibn Hayyan is one of them.

Sunan Abi Dawud Book 15, Hadith 176 Next Hadith → Salamh (bin Al Akwa’) said “I went on an expedition with the Apostle of Allaah(ﷺ) against Hawazin and while we were having a meal in the forenoon and most of our people were on foot and some of us were weak, a man came on a red Camel. He took out a rope from the lion of the Camel and tied his Camel with it and began to take meal with the people. When he saw the weak condition of their people and lack of mounts he went out in a hurry to his Camel, untied it made it kneel down and sat on it and went off galloping it. A man of the tribe of Aslam followed him on a brown she Camel which was best of those of the people. I hastened out and I found him while the head of the she Camel was near the paddock of the she Camel. I then went ahead till I reached near the paddock of the Camel. I then went ahead till I caught the Camel’s nose string. I made it kneel. When it placed its knee on the ground, I drew my sword and struck the man on his head and it fell down. I then brought the Camel leading it with (its equipment) on it. The Apostle of Allaah(ﷺ) came forward facing me and asked “Who killed the man? They (the people) said “Salamah bin Akwa’. He said “he gets all his spoil.”

Harun said “This is Hashim’s version.

Sunan Abi Dawud Book 15, Hadith 178