Musnad Ahmad 785:22

Sufyan ibn 'Uyaynah narrated to us, from Ibrahim ibn Maysarah, from 'Amr ibn al-Sharid, from his father, or from Ya'qub ibn 'Asim, that he heard al-Sharid say: The Messenger of Allah (peace and blessings of Allah be upon him) saw a man dragging his lower garment, so he hastened toward him, or trotted, and said: "Raise your lower garment and fear Allah." He said: "I am bow-legged, and my knees knock together." He said: "Raise your lower garment, for all of Allah the Almighty's creation is good." That man was never seen afterward except with his lower garment reaching the middle of his shins, or up to the middle of his shins.