Abu Hurairah narrated that the Messenger of Allah (s.a.w) said:
"Paradise and the Fire debated. Paradise said: 'The weak and the poor shall enter me,' and the Fire said: 'The tyrants and the proud shall enter me.' So He said to the Fire: 'You are My Punishment, I take vengeance through you from whom I will,' and He said to Paradise: 'You are My Mercy I show mercy through you to whom I will.'" (ES)
English reference (ES): Vol. 4, Book 12, Hadith 2561 (ES)
Arabic reference (ES): Book 38, Hadith 2759 (ES)