Ali bin Yahya bin Khallad al-Zuraqi (may Allah have mercy on him) said: My father narrated to me from his uncle who fought at Badr (may Allah be pleased with him) that he was sitting with the Messenger of Allah (peace and blessings be upon him) in the mosque; then he mentioned the hadith, and the Messenger of Allah (peace and blessings be upon him) said to that man: "When you complete your prayer in this way, you have completed your prayer, and whatever you fall short of in this, you are only falling short in your prayer."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3948