Sahih Muslim
The Book of Prayers (Kitab Al-Salat)
Book Number: 004 / Hadith Number: 1251
Abu Huraira reported ahadith from the Messenger of Allah (may peace be upon him), and one of them is that the Messenger of Allah (may peace be upon), said: When the call is made for prayer come to it walking with tranquillity, and pray what you are in time for, and complete what you have missed.