Musannaf Ibn Abi Shaybah 7244 — Those who shifted their weight between

Sayyiduna Abdullah (may Allah be pleased with him) saw a man standing in prayer with both his feet kept apart. Sayyiduna Abdullah said: "If he were to do murawahah between his two feet, it would be better." (Murawahah between the two feet means that a person keeps the right foot upright and puts his weight on the left foot, then keeps the left foot upright and puts his weight on the right foot, and keeps doing this in turn.)