《资治通鉴·后周纪·后周纪二》
农民既已得到这些成为永久产业，方才敢修葺房屋、种植树木，获取地利数倍于以前。
民既得为永业，始敢葺屋植木，获地利数倍。
Only after the peasants gained these permanent properties, they dared to renovate their houses, plant trees, and harvest several times more grain than before.