佛祖統紀 34.19

34.19

On the eighth day of the fourth month of the jiayin year under King Zhao, rivers, streams, pools, and wells overflowed; palaces and the great earth shook; and a five-colored vapor of light penetrated the Taiwei constellation and spread across the west. The King asked the Grand Astrologer Su You, 'What kind of omen is this?' He replied, 'A great sage has been born in the west. After one thousand years, the sound of his teaching will reach here.' The King ordered stone to be engraved and placed before the great altar in the southern suburb (Zhoushu yiji. ○ Liu Shu's Waiji: In King Zhao's time, a five-colored light penetrated Ziwei and well water overflowed).