This is from the Kata Gyokko Ryu Ninjutsu Kosshijutsu Chu ryaku no maki
This is from the Ryu Ha Gyokko Ryu Ninjutsu
Dashin (Shake & Pull)
The name of the technique means to shake and pull down.. What is important here is the method of striking the Ukes thumb with the shuto when you are knocking his short sword down.
Both clasp both hands in Futen Goshin Gassho and bow to each other. Then both you and the Uke stand in Ichimonji no Kamae.
The Uke draws a short sword and stands in Seigan no Kamae.
As the Uke thrusts with the short sword to your stomach, shift to the left with the left foot and lightly control the Ukes wrist with the left hand. Then, shift forward with the right foot and strike with a Shuto to the thumb to make the Uke drop the short sword.
Take the Ukes right hand in Omote Gyaku with both hands in preparation for a throw.
The Uke kicks with either the left or the right. Kick up with the right foot in response to this to put the Uke off-balance, then pull back with your left leg and throw the Uke with Omote Gyaku.
Finish with a right kick to Wakitsubo.
Then return to Ichimonji no Kamae and Zanshin.
To become useful jade must be carved; to become wise man must experience adversity.