«إِنْ شُفْت المِزَيِّنْ بِيِحْلَقْ لِحْيِةْ جَارَكْ صَبِّنْ لِحْيِتَكْ»

The saying advises learning from trouble that has already reached someone nearby. In its traditional barber-and-beard image, another person’s experience serves as an early warning that a comparable risk may be approaching, so it is wiser to prepare than to wait passively.

Its force is practical vigilance, not certainty: the neighbor’s fate does not prove that the same thing will happen to anyone else. Rather, it gives reason to notice warning signs, take sensible precautions, and act before a possible problem becomes unavoidable.

Use it when an event affecting one person suggests that others in a comparable position should prepare or change course. The traditional beard image is not limited to men; the intended lesson is broader. It warns of a plausible parallel risk, not an inevitable repetition.