Sunan Abi Dawud
Hadith #572
Abu Hurairah said:I heard the Messenger of Allah( may peace be upon him) say: When the iqamah is pronounced for prayer, do not come to it running, but come walking(slowly). You should observe tranquility. The part of the prayer you get(along with the imam) offer it, and the part you miss complete it(afterwards). Abu Dawud said: The version narrated by al-Zubaidi, Ibn Abi Dhiâb, Ibrahim b. Saâd, Maâmar, Shuâaib b. Abi Hamzah on the authority of al-Zuhri has the words: âthe part you miss then complete itâ. Ibn âUyainah alone narrated from al-Zuhri the words âthen offer it afterwardsâ. And Muhammad b. âAmr narrated from Abu Salamah on the authority of Abu Hurairah, and Jaâfar b. Rabiâah narrated from al-Aâraj on the authority of Abu Hurairah the words âthen complete itâ. And Ibn Masâud narrated from the Prophet(ï·ș) and Abu Qatadah and Anas reported from the Prophet( may peace be upon him) the wordsâ then complete itâ