حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ: حَدَّثَنَا فِطْرٌ، عَنْ أَبِي يَحْيَى قَالَ: سَمِعْتُ مُجَاهِدًا، عَنِ ابْنِ عَبَّاسٍ قَالَ: لَوْ أَنَّ جَبَلاً بَغَى عَلَى جَبَلٍ لَدُكَّ الْبَاغِي.
Ibn 'Abbas said, "If one mountain had acted tyrannically towards another mountain, the aggressor would have been pulverised."
Reference: Al-Adab Al-Mufrad 588
In-book : Book 30, Hadith 51
English translation : Book 30, Hadith 588