《资治通鉴·唐纪·唐纪十七》
部下诸将因加林城是水陆交通要冲，想先进攻它。刘仁轨说： 加林城险要坚固，急攻会伤亡士卒，慢攻又攻不下，将旷日持久。
诸将以加林城水陆之冲，欲先攻之，仁轨曰： 加林险固，急攻则伤士卒，缓之则旷日持久。
Generals under his command wanted to first attack Jia Lin city, as it is an important area for water and land transportation. Liu Rengui said: "Jia Lin city is dangerous and sturdy, it will incur casualties if we swiftly attack it, and if we attack it slowly, we won't be able to conquer it, and we will be stuck here for a long time.