I was sitting with Usama when he was asked about the pace of the Prophet ﷺ when he departed from Arafah. He replied that he would travel at a moderate pace, and when he found an open space, he would quicken it, meaning faster than the moderate pace.
حدثنا وكيع حدثنا
كنت جالسا عند أسامة فسئل عن مسير النبي ﷺ حين دفع من عرفة فقال كان يسير العنق فإذا وجد فجوة نص يعني فوق العنق