Sunan Ibn Majah #4102

Sahih (Authentic) Asceticism
كُنْ فِي الدُّنْيَا كَأَنَّكَ غَرِيبٌ أَوْ عَابِرُ سَبِيلٍ

The Messenger of Allah (ﷺ) said: 'Be in this world as if you were a stranger or a traveler.'

— Sunan Ibn Majah #4102

Cadeia de Narração (Isnad)

Narrated Ibn 'Abbas