With devotion on there plates and blossoms in their cups they made this Oath in the Peach Garden.

Chapter 1 of Romance of the Three Kingdoms, was this:

From this day forward, we shall join forces for a common purpose: to save the troubled and to aid the endangered. We shall avenge the nation above, and pacify the citizenry below. We seek not to be born on the same day, in the same month and in the same year. We merely hope to die on the same day, in the same month and in the same year. May the Gods of Heaven and Earth attest to what is in our hearts. If we should ever do anything to betray our friendship, may heaven and the people of the earth both strike us dead.

桃园三结义！

刘关张三结义

Under the boughs and falling petals of the peach trees.

wow

...and my sword...