Al-Zuhri and Nafi' differed among themselves in four traditions. This is one of them.
Sunan Abi Dawud Book 24, Hadith 19
← Previous Hadith The Prophet (ﷺ) as saying: If anyone buys a slave who possesses property. his property belongs to the seller unless buyer makes a provision and if anyone buys palm-trees after they have been fecundated, the fruit belongs to the seller unless the buyer make a provision.

Sunan Abi Dawud Book 24, Hadith 18 Next Hadith → The Prophet (ﷺ) said: If anyone buys a slave who possesses property, his property belongs to the seller unless the buyer makes a proviso.

Sunan Abi Dawud Book 24, Hadith 20