كُنْ فِي الدُّنْيَا كَأَنَّكَ غَرِيبٌ أَوْ عَابِرُ سَبِيلٍ
Live in this world as though you were a stranger or a traveler passing along the road.
Source: البخاري
كُنْ is an imperative meaning “be.” كَأَنَّكَ means “as though you were,” introducing a comparison. غَرِيبٌ is a stranger away from home; عَابِرُ سَبِيلٍ is someone passing along a route. These images highlight worldly life’s temporary nature.
A traveler carries what is needed for the journey without mistaking a stopping point for a permanent home. Likewise, a person can responsibly care for family, work, and obligations while remembering accountability and preparation for the Hereafter.