The Messenger of Allah ﷺ said, "When you prostrate, place your palms on the ground and raise your elbows."
حدثنا عفان حدثنا عبيد الله بن إياد حدثنا إياد
قال رسول الله ﷺ إذا سجدت فضع كفيك وارفع مرفقيك
Its isnad is sahih, mentioned previously at 18402.