«اِللِّي فِيهْ مَا يْخَلِّيهْ»

The saying expresses the view that a deeply rooted trait, habit, or disposition tends to persist. What is established within someone is portrayed as remaining with them rather than disappearing easily.

It explains recurring behavior as the return of an old, settled tendency, whether admired or troublesome. Its broad claim should not be treated as proof that a person cannot change or as support for stereotyping people.

Say it when familiar character or habitual conduct reappears after a change, promise, or interval. It can be matter-of-fact or critical, but use it cautiously: it may sound dismissive of someone’s efforts to change.