Ko-soto-gari
(minor outer reaping)

"Tori advances his right leg as far as possible to the outside of Uke's right leg so that his right foot is planted in or behind the axis of Uke's feet. Tori places the sole of his left foot behind the heel of Uke's right foot and reaps it in the direction of his toes. At the same time with his left hand he strongly pulls downward, while with his right hand he pushes Uke to the rear."