Musnad Ahmad 32:1345

Rawh narrated to us, Sa'id narrated to us, from Qatadah, Anas ibn Malik narrated to us, that the Prophet of Allah, peace and blessings of Allah be upon him, said: "The disbeliever will be brought on the Day of Resurrection, and it will be said to him: 'Do you see, if you had the earth full of gold, would you ransom yourself with it?' He will say: 'Yes, O Lord.' He said: 'It will be said: You were asked for something easier than that.' That is His saying, the Almighty and Majestic: {Indeed, those who disbelieve and die while they are disbelievers - never would the [whole] capacity of the earth in gold be accepted from one of them if he would [seek to] ransom himself with it} [Al-Imran: 91]."