The Prophet Muhammad (peace be upon him) said: God has revealed to me that you must be humble, so that no one oppresses another and boasts over another. - Sunan of Abu-Dawood, Hadith 2294

(O Prophet Muhammad) give good news to the humble, whose hearts tremble with awe at the mention of God, who endure adversity with patience, who establish regular prayer, and who spend in charity out of what we have given them. - The Holy Quran, 22:34-35