Battle of Khaybar
In May 625, Muhammad laid siege to the Banu Nadir, after he came to know that they were plotting to assassinate him. The siege is said to have lasted anywhere between six and fifteen days. Enjoying their strategic advantage due to the thick foliage of palm trees surrounding their castles, the Banu Nadir pelted the Muslims with stones and showered arrows upon them from their castles. In response, Muhammad is said to have commanded the burning of the palm trees. The tribe eventually surrendered and was expelled, moving northward toward Khaybar, another Jewish fort city around 150 km (95 mi) north of Medina and was captured again during the Battle of Khaybar. They were allowed to live around Khaybar until the Rashidun caliph, 'Umar ibn al-Khattab, expelled them for a second time.