Sahih Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Volume: 005 / Book Number: 059 / Hadith Number: 364
Narrated Anas bin Malik:
Some people used to allot some date palm trees to the Prophet as gift till he conquered Banu Quraiza and Bani An-Nadir, where upon he started returning their date palms to them.