(14) باب التَّحِيَّةِ وَالإِمَامُ يَخْطُبُ
Jabir b. 'Abdullah reported that a person came (in the Mosque) while the Messenger of Allah (ﷺ) was delivering the sermon on Friday (standing) on the pulpit. He (the Holy Prophet) said to him:
Have you offered two rak'ahs? He said: No. Upon this he said: Then observe (them).
Reference: Sahih Muslim 875 d
In-book reference: Book 7, Hadith 71
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1900