Hadeeth Qudsi 39:

On the authority of Abu Sa’idal-Khudri (may Allah be pleased with him), who said that the Messengerof Allah said:

Paradise and Hell-fire disputedtogether, and Hell-fire said: In me are the mighty and the haughty.Paradise said: In me are the weak and the poor. So Allah judged betweenthem, [saying]: You are Paradise, My mercy; through you I show mercy tothose I wish. And you are Hell-fire, My punishment; through you Ipunish those I wish, and it is incumbent upon Me that each of you shallhave its fill.

It was related by Muslim (alsoby al-Bukhari and at-Tirmidhi).