Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates that he (peace and blessings be upon him) said: "Do not come to the prayer running, but come calmly, walking. Whatever of the prayer you catch, pray it, and whatever you have missed, complete it."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3627