Musnad Ahmad 30:2381

Isma'il narrated to us, 'Ata' ibn al-Sa'ib informed us, from al-Agharr, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: Allah (Mighty and Majestic is He) said: "Pride is My cloak, and greatness is My lower garment. Whoever disputes with Me regarding either of them, I will cast him into Hell."