《新唐书·列传·卷一百四十》
于是恃功，每次派使者来颇为骄横。武德元年，骨咄禄特勒来朝，皇帝在太极殿宴请，为他奏九部乐，引他登御坐侧。
帝平京师，遂恃功，使者每来多横骄。武德元年，骨咄禄特勒来朝，帝宴太极殿，为奏九部乐，引升御坐。
So he relied on his merit, and every time he sent an envoy, he was quite arrogant. In the first year of Wude, Bone Duoluo Teqin came to the court, and the emperor feasted him in the Taiji Hall, playing nine-part music for him and inviting him to sit beside the imperial seat.