Hadith #3064 (Sunan Abi Dawud)
Book: Tribute, Spoils, and Rulership (Kitab Al-Kharaj, Wal-Fai' Wal-Imarah)
Narrator(s): Harun bin 'Abdullah al-Hamal هارون بن عبد الله بن مروان الحمال, Imam Muhammad محمد بن الحسن الشيباني
Grade: Hasan

Abyad went to the Messenger of Allah (ﷺ) and asked him for assigning him (the mines of) salt as fief. (The narrator Ibn al-Mutawakkil said: which was in Ma’arib.)
So he assigned it to him as a fief. When he returned, a man in the meeting asked: Do you know what you have assigned him as a fief? You have assigned him the perennial spring water. So he took it back from him. He asked him about protecting land which had arak trees growing in it. He replied: He could have such as was beyond the region where the hoofs (of camels) went.
The narrator Ibn al-Mutwakkil said: “that is the camel hoofs.”

Source: https://parallelquran.com/hadith/sunan-abi-dawud-3064/

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Hadith #4517 (Sunan Abi Dawud)
Book: Types of Blood-Wit (Kitab Al-Diyat)
Narrator(s): Amr bin Shu'aib bin Muhammad عمرو بن شعيب بن محمد السهمي, Imam Muhammad محمد بن الحسن الشيباني, Muhammad bin Bakr bin 'Uthman al-Barsani محمد بن بكر بن عثمان البرساني, Shu'aib bin Muhammad bin 'Abdullah شعيب بن محمد بن عبد الله بن عمرو
Grade: Da'if

Then al-Hasan forgot this tradition, and he used to say: A free man is not to be killed for a slave.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-4517/