«خَلِّي الْمِيَّهْ مِيَّهْ وِارْدَب»

The saying sets a hundred against one more ardeb, a traditional dry measure for grain, to claim that once a large amount has been given, adding a little more costs almost nothing. The giver loses nothing worth worrying about, and the small extra makes the gift complete instead of leaving it slightly short.

It also carries moral advice: do not tighten your hand at the last moment. A kindness carried through to the end is worth more than a large favor marred by a grudging final refusal. This is not advice to spend carelessly; the point is to finish a generous act, not to encourage waste.

Use this to urge someone who has already been generous not to stop short over a trivial addition. It suits moments of giving, hosting, or settling a favor, when a final small gesture would round out a large kindness instead of spoiling it through stinginess.