‘A’isha reported the Prophet as saying, “He who develops land which has no owner has the best right to it.” ‘Urwa said that ‘Umar gave decision accordingly during his caliphate. Bukhari transmitted it.
Hadith Referenceمشكوة المصابيح / كتاب البيوع / 2991
Hadith Gradingالألبانی:صَحِيح | زبیر علی زئی:صحيح
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «رواه البخاري (2335)»