Narrated 'Urwa bin az-Zubair (RA): A man among the Companions of Allah's Messenger ( صلی اللہ علیہ وسلم ) said: "Two men brought a dispute before Allah's Messenger ( صلی اللہ علیہ وسلم ) concerning a land in which one of them had planted palm trees and the land belonged to the other. So, Allah's Messenger ( صلی اللہ علیہ وسلم ) ruled that the land belongs to its owner, and commanded the owner of the palm trees to uproot his palm trees. He said, "The labor of an unjust person has no right." [Reported by Abu Dawud and its chain of narrators is Hasan (good). The last (quoted) part of the aforesaid Hadith is found in the books of the collections of as-Sunan, from 'Urwa's narration on the authority of Sa'id bin Zaid. However, there is disagreement regarding whether it is Mawsul (an unbroken chain) or Mursal (missing link after the Tabi'i) as well as the determination of the name of the Companion who heard it from the Prophet ( صلی اللہ علیہ وسلم ).