《旧唐书·列传·卷十三》
比如每接到一道诏令，我一定进行核对，对那些前后没有矛盾的诏令，才敢宣布执行。
比每受一敕，臣必勘审，使与前敕不相乖背者，始敢宣行。
For example, I will carefully check and verify each imperial edict that I receive. Only when I am sure that there are no contradictions, will I dare to announce and implement the edict.