Sahih BukhariVolume 6, Book 60, Number 406

Narrated Ibn Umar:

'Allah's Apostle burnt and cut down the palm trees of Bani An-Nadir which were at Al-Buwair (a place near Medina). There upon Allah revealed:

'What you (O Muslims) cut down of the palm trees (of the enemy) or you left them standing on their stems, it was by the leave of Allah, so that He might cover with shame the rebellious.' (59.5)