كتاب المنثورات والملح
19
The Book of Miscellaneous ahadith of Significant Values
Al-Mughirah bin Shu'bah (May Allah be pleased with him) said:
No one asked the Messenger of Allah (ﷺ) more about Dajjal than I asked him. He said to me, "He will not harm you." I said: "O Messenger of Allah, it is reported that he will have with him a mountain of bread and a river full of water." Thereupon he said, "He (Dajjal) is far too worthless and insignificant near Allah (to let him deceive the believers)."

[Al-Bukhari and Muslim].

وعن المغيرة بن شعبة رضي الله عنه قال‏:‏ ما سأل أحد رسول الله صلى الله عليه وسلم عن الدجال أكثر مما سألته؛ وإنه قال لي‏:‏ ‏"‏مايضرك‏؟‏ ‏"‏قلت‏:‏ إنهم يقولون‏:‏ إن معه جبل خبز ونهر ماء‏!‏ قال‏:‏ ‏"‏هو أهون على الله من ذلك‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏‏.‏
Sunnah.com reference : Book 19, Hadith 9
Arabic/English book reference : Book 19, Hadith 1816