The Book of Jihad and Expedition (Kitab Al-Jihad wa'l-Siyar)
Muslim :: Book 19 : Hadith 4325
It is narrated on the authority of Ibn Umar that the Messenger of Allah (may peace be upon him) caused the date-palms of Banu Nadir to be cut down and burnt. It is in this connection that Hassan (the poet) said:
It was easy for the nobles of Quraish to barn Buwaira whose sparks were flying in all directions.
in the same connection was revealed the Qur'anic verse:" Whatever trees you have cut down or left standing on their trunks."