Musannaf Ibn Abi Shaybah

Hazrat Ubaidullah bin Adi bin Khiyar narrates that Hazrat Umar said: Surely, when someone becomes arrogant and exceeds his limits, Allah, the Lord of Might, throws him down to the earth. And the Prophet (peace and blessings be upon him) said: You scorn others, so Allah scorns you, for he considers himself great in his own eyes but becomes small in the eyes of people, until he becomes more despicable before people than a pig.