《旧唐书·本纪·卷十五》
当时，皇上为财赋的问题很着急，因此任用聚敛赋税的大臣居于宰相之位。
是时，上切于财赋，故用聚敛之臣居相位。
At that time, the emperor was very anxious about financial resources, so he appointed ministers who were good at collecting taxes to the position of prime minister.