《新唐书·列传·卷五十》
开元十三年，跟随皇帝东封泰山。诏令苏颋撰写朝觐碑文，世人均极赞赏。
从封泰山，诏颂朝觐坛，世咨其文。
Thirteen years after the opening of the yuan, he followed the emperor to the east to enshrine Mount Tai. An imperial edict ordered Su Duo to write the inscription for the pilgrimage, which was highly praised by the world.