法苑珠林 28.48

28.48

The Dijingtutu says: If one observes that among the tiles upon a roof, only some have no frost, underneath them is a hidden treasure. The Yanzi chunqiu says: The jade disk of the He clan was merely an unworked stone from a hamlet; if a skilled craftsman refines it, it becomes a treasure that preserves a state (Kongxiangzi says, 'an unworked stone from a hamlet'; he also says, 'if a jade worker carves it, it becomes a treasure of the realm').