«كُل عُرْمَهْ وِلَهَا قَصَلَهْ»

The saying holds that nothing comes entirely pure. Any large gathering of good things will carry some inferior part with it, just as a heap of fodder on the threshing floor always leaves coarse, stalky residue behind after it is gathered.

In practice it reminds listeners to expect a mix of fine and poor within any whole, stating this matter-of-factly rather than as harsh condemnation. It can soften disappointment over flaws, excuse a few weak members of a group, or caution against assuming that anything abundant is uniformly excellent.

Suitable when someone expects flawless results from a large batch, group, or undertaking. It gently points out that some poor portion is normal and should be accepted or sorted out, rather than treated as a reason to reject everything.