Expedition of Zayd ibn Harithah to Wadi al-Qura took place in November, 627AD, 7th month of 6AH of the Islamic calendar.
[2][3] Wadi al-Qura was an oasis, about 7 miles from Medina.
Zayd ibn Harithah set out with 12 men to survey this area and to monitor the movements of enemies of Muhammad.
[1] However, the inhabitants in this area were unfriendly to Zayd.
The people there attacked the Muslims, killed 9 of them, while the rest including Zaid bin Haritha managed to escape.