Sahih Muslim Book 4, Hadith Number 1897.

Chapter : Shortness of prayer and surmon.

Jabir b. ‘Abdullah reported that while Allah’s Messenger (may peace be upon him) was delivering the sermon on Friday a person came there, and the Apostle of Allah (may peace be upon him) said to him: So and so, have you prayed (two rak’ahs)? He said: No. He (the Holy Prophet) said: Then stand and pray.