《太平广记·卷二百一十二·画三》
五条龙摇首摆尾，象要腾飞似的，每当天要下雨时，画上就生出烟雾来。
鳞甲飞动。每欲大雨，即生烟雾。
The five dragons shook their heads and swung their tails as if they were about to take flight. Every time it rained, smoke would rise from the painting.