Sunan at-Tirmithiy كتاب الزهد باب منه [ قصر عمر الدنيا ]
The Messenger of God, peace and blessings of God be upon him, said, "The worldly life, compared to the hereafter, is like one who dips his finger into the ocean; let him look and see how much [water] he returns with." Click on ḥadīth to read more