Sahih Bukhari
Agriculture
Volume: 003 / Book Number: 039 / Hadith Number: 518
Narrated Abu Huraira:
The Ansar said to the Prophet "Distribute the date palm trees between us and our emigrant brothers." He replied, "No." The Ansar said (to the emigrants), "Look after the trees (water and watch them) and share the fruits with us." The emigrants said, "We listen and obey."