首楞嚴義疏注經 5.86

5.86

Thereupon, the Tathāgata folded the patterned cloth and made another knot, asking Ānanda once more: "What is this called?" Ānanda and the great assembly addressed the Buddha again: "This too is called a knot." In this sequential manner he folded and tied the patterned cloth until there were six knots in total. As each knot was completed, he held up the knot formed in his hand and asked Ānanda: "What is this called?" Ānanda and the great assembly likewise answered the Buddha in turn: "This is called a knot."