زیره به کرمان بردن
“To carry cumin to Kerman.”
To do something entirely pointless, like bringing a good to the very place already famous for producing it in abundance — the Persian equivalent of carrying coals to Newcastle.
— Traditional Iran Wisdom, Iran
Source: Traditional Iranian (Persian) proverb, public-domain oral tradition
More Proverbs from Iran
Drop by drop it gathers, and then it becomes a sea.
Small, consistent contributions accumulate over time into something great.
A good year is known from its spring.
The eventual quality of something can be foreseen from its early signs.
Whoever has a bigger roof has more snow.
Greater wealth, status, or responsibility brings correspondingly greater troubles.
From this pillar to that pillar there is relief.
Given time and patience, difficult situations can change for the better.
Unless there were a little something, people would not say things.
Rumors usually have some basis — where there is smoke there is fire.
Once the water is over one's head, whether it be one span or a hundred, it is all the same.
Once a limit has been passed, the degree of excess no longer matters.