《资治通鉴·唐纪·唐纪二十八》
唐初州县官的官俸，都是让当地富户掌管公廨本金而后出利息支付，由于利息高至借一还二，故而有很多人倾家荡产。
唐初，州县官俸，皆令富户掌钱，出息以给之；息至倍称，多破产者。
In the early Tang Dynasty, local state and county officials' salaries were all paid by a local wealthy household with interest after keeping the capital of the public treasury. Because the interest would be as high as one borrowing two, many people went broke.