Anas b. Malik reported that Allah's Messenger (may peace be u n him) said: It would be said to the non-believers on the Day of Resurrection: If you were to possess gold, filling the whole earth, would you like to secure your freedom by paying that? He would say: Yes. Thereupon it would be said to him: Something easier (than this) was demanded from you (but you paid no heed to it).
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ عُمَرَ الْقَوَارِيرِيُّ، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَمُحَمَّدُ بْنُ الْمُثَنَّى، وَابْنُ، بَشَّارٍ قَالَ إِسْحَاقُ أَخْبَرَنَا وَقَالَ الآخَرُونَ، حَدَّثَنَا مُعَاذُ بْنُ هِشَامٍ، حَدَّثَنَا أَبِي، عَنْ قَتَادَةَ، حَدَّثَنَا أَنَسُ بْنُ مَالِكٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ " يُقَالُ لِلْكَافِرِ يَوْمَ الْقِيَامَةِ أَرَأَيْتَ لَوْ كَانَ لَكَ مِلْءُ الأَرْضِ ذَهَبًا أَكُنْتَ تَفْتَدِي بِهِ فَيَقُولُ نَعَمْ . فَيُقَالُ لَهُ قَدْ سُئِلْتَ أَيْسَرَ مِنْ ذَلِكَ " .
sunnah.com