Hadith 735:1
'Abd al-Rahman ibn Mahdi narrated to us, 'Abbad ibn Rashid narrated to us, he said: I heard al-Hasan saying: Ahmar ibn Juzayy, a companion of the Messenger of Allah, may Allah bless him and grant him peace, narrated to us, he said: "We used to seek shelter with the Messenger of Allah, may Allah bless him and grant him peace, because of how much he would keep his elbows away from his sides when he prostrated."
حدثنا عبد الرحمن بن مهدي، حدثنا عباد بن راشد، قال: سمعت الحسن يقول: حدثنا أحمر بن جزي، صاحب رسول الله صلى الله عليه وسلم قال: " إن كنا لنأوي إلى رسول الله صلى الله عليه وسلم، مما يجافي مرفقيه عن جنبيه إذا سجد "