萧规曹随

xiāo guī cáo suíxiaoguicaosui

1. lit. Xiao's 蕭何|萧何[Xiao1 He2] governance followed by Cao 曹參|曹参[Cao2 Can1] (idiom)
2. fig. to strictly adhere to the policies of the predecessor
3. to follow precedent

Study it in Yanamino