Nihongi: Chronicles of Japan from the Earliest Times to A.D. 697…
“ Prince Oshikuma believed these deluding words, and ordered all his troops to ungird their weapons and fling them into the water of the river, and also to cut their bow-strings. Upon this, Takechi no Sukune commanded the three divisions of his army to produce their spare bow-strings, and to string their bows again, and, girt with their real swords, to advance across the river. Prince Oshikuma, seeing that he had been deceived, spake to Kurami-wake and Isachi no Sukune, saying:—"We have been deceived, and have now no spare weapons. How shall we be able to fight?" ”
