Musnad Ahmad 30:2033

Abdullah ibn Bakr narrated to us, he said: I heard Maysur, the freed slave of Quraysh, in the circle of Sa’id, narrating from Muhammad ibn Ziyad al-Qurashi, from Abu Hurayrah, that a youth passed by him dragging his lower garment. He poked him with an iron rod that was with him. Then he said: "Has it not reached you what Abu al-Qasim (may Allah bless him and grant him peace) said? 'Allah does not look at the one who drags his lower garment out of arrogance.'"