It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both), as a marfu' report, that the Messenger of Allah (peace and blessings be upon him) said: "The best of you are those whose shoulders are softest in prayer."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Ayyub except Asim bin Hilal."
Hadith Referenceالمعجم الأوسط / باب الميم / 5291
Hadith Takhrij«أخرجه البزار فى «مسنده» برقم: 5922، وعبد الرزاق فى «مصنفه» برقم: 2471، والطبراني فى «الكبير» برقم: 13494، والطبراني فى «الأوسط» برقم: 5217، 5240»