(Muslim and Abū ʿAwānah) and (he would sometimes sit on his heels and the balls of his feet) The obligation of tranquility between the two prostrations
(مسلم وأبو عوانة) و (كان - أحيانا - يقعي [ينتصب على عقبيه وصدور قدميه] ) وجوب الاطمئنان بين السجدتين