釋氏稽古略 2.239

2.239

八月北齊主如晉陽還鄴。以佛道二教不同。欲去其一。集二家學者。論難於前。遂勅道士。皆剃髮為沙門。詔曰。得僊者可飛騰遠舉。不能爾者並宜改習歸正詣昭玄上統剃度出家。有不從者殺四人乃奉命。由是齊境皆無道士（北齊紀。南山宣律師論衡）。

In the eighth month, the ruler of Northern Qi traveled to Jinyang and returned to Ye. Because the two teachings of Buddhism and Daoism differed, he wished to eliminate one of them. Gathering scholars of both schools, he had them debate in his presence. Thereupon, he decreed that all Daoist priests shave their heads and become śramaṇas. His edict declared: "Those who have attained immortality may fly upward and soar far away; those who cannot do so must thoroughly revise their practices, return to correctness, and report to the Supreme Controller of the Office of Clerical Affairs to be tonsured and leave home." Four who refused to comply were executed, after which the others obeyed the command. Because of this, there were no Daoist priests throughout the entire realm of Qi. (Chronicles of Northern Qi; Vinaya Master Nanshan's Critical Assessments)