《资治通鉴·隋纪·隋纪八》
李渊将府库中所有的东西都拿出来赏赐给有功的人。国家的财政困难，右光禄大夫刘世龙献策，认为 现在义师有几万人都在京师，柴草贵而布帛贱，请允许砍伐长安城中六坊和苑中的树木为柴，用来换取布帛，可以得到几十万匹布帛。 
渊倾府库以赐勋人，国用不足，右光禄大夫刘世龙献策，以为 今义师数万，并在京师，樵苏贵而布帛贱；请伐六街及苑中树为樵，以易布帛，可得数十万匹。 
Li Yuan took all the items from the government treasury and awarded them to those with merit. The national treasury was in difficulty, and the Right Minister Liu Shilong offered a plan, stating that now that there were tens of thousands of righteous troops in the capital and firewood was expensive while textiles were cheap, he asked for permission to cut down the trees in the six wards and gardens of Chang'an City for use as firewood, which could be exchanged for textiles, yielding hundreds of thousands of bolts of cloth.