Hadith #244
English (English)If the believer came to know of the quantity of punishment with Allah, no one would be expectant of His paradise; and if the disbeliever came to know of the quantity of mercy with Allah, no one would lose hope of His paradise.
Reference: صحيح مسلم، كتاب التوبة، باب في سعة رحمة الله تعالى وأنها سبقت غضبه، الحدیث 2755