Mistawrid, who belonged to Banu Fihr, narrates: I heard the Prophet Muhammad (peace be upon him) say, "The example of this world in comparison to the Hereafter is like that of a person who dips his forefinger into the sea and then examines what it returns with (i.e., how much water it brings back)."
Hadith Referenceصحیح ابن حبان / كتاب التاريخ / 6159
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح: م (8/ 156).فضيلة الشيخ العلّامة شُعيب الأرناؤوطحديث صحيح