كتاب الفتن وأشراط الساعة
54  
The Book of Tribulations and Portents of the Last Hour
(22)
Chapter: Ad-Dajjal Is Very Insignificant Before Allah
(22)
باب فِي الدَّجَّالِ وَهُوَ أَهْوَنُ عَلَى اللَّهِ عَزَّ وَجَلَّ
Sahih Muslim 2939 b

Mughira b. Shu'ba reported that none asked Allah's Apostle (ﷺ) about Dajjal more than I asked him. I (one of the narrators other than Mughira b. Shu'ba) said:

What did you ask? Mughira replied: I said that the people alleged that he would have a mountain load of bread and mutton and rivers of water. Thereupon he said: He would be more insignificant in the eye of Allah compared with all this.
حَدَّثَنَا سُرَيْجُ بْنُ يُونُسَ، حَدَّثَنَا هُشَيْمٌ، عَنْ إِسْمَاعِيلَ، عَنْ قَيْسٍ، عَنِ الْمُغِيرَةِ، بْنِ شُعْبَةَ قَالَ مَا سَأَلَ أَحَدٌ النَّبِيَّ صلى الله عليه وسلم عَنِ الدَّجَّالِ أَكْثَرَ مِمَّا سَأَلْتُهُ قَالَ ‏"‏ وَمَا سُؤَالُكَ ‏"‏ ‏.‏ قَالَ قُلْتُ إِنَّهُمْ يَقُولُونَ مَعَهُ جِبَالٌ مِنْ خُبْزٍ وَلَحْمٍ وَنَهَرٌ مِنْ مَاءٍ ‏.‏ قَالَ ‏"‏ هُوَ أَهْوَنُ عَلَى اللَّهِ مِنْ ذَلِكَ ‏"‏ ‏.‏
Reference : Sahih Muslim 2939b
In-book reference : Book 54, Hadith 140
USC-MSA web (English) reference : Book 41, Hadith 7021
  (deprecated numbering scheme)