《太平广记·卷四十一·神仙四十一》
开元末年，薛尊师当时已经一百多岁了。忽然告诉弟子说： 天帝召我去做八威观主。 
开元末，时已百余岁，忽告门人曰： 天帝召我为八威观主。 
At the end of Kaiyuan, Venerable Xue was already over 100 years old. He suddenly told his disciples: The Emperor of Heaven summoned me to be the abbot of Bawi Monastery. 