Sahih Muslim Book 4, Hadith Number 1886.

Chapter : Warning on neglecting Jumu’a.

Ja’far b. Muhammad said on the authority of his father: I heard Jabir b. ‘Abdullah saying that in the sermon of the Apostle of Allah (may peace be upon him) he praised Allah, lauded Him (and subsequently said [other words] and raised his voice, and the rest of the Hadith is the same).