《元史·列传·卷三十》
一日偶过梁山泺，见一渔夫织芦花为被，便把绸缎换取渔夫芦花被。
偶过梁山泺，见渔父织芦花为被，欲易之以。
One day, he happened to pass by Liangshan Luo and saw a fisherman weaving reeds into a quilt. He then exchanged his silk for the fisherman's reed quilt.