《新唐书·列传·卷一百四十二》
迦斯回来，可汗等人出而劳军，都俯伏报告废立之事，并说听凭大相处置。
迦斯还，可汗等出劳，皆俯伏言废立状，惟大相生死之。
When Qars came back, the Khagan and the others met and feted the troops, knelt in front of him to report about the dethronement and enthronement, and said that they would obey the grand tutor’s arrangements.