From Sahih Muslim (Hadith 2023):
Jabir reported that Sulaik Ghatafani came on Friday (for prayer) while the Messenger of Allah (ﷺ) was sitting on the pulpit. Sulaik also sat down before observing prayer. The Apostle of Allah (ﷺ) said:Have you observed two rak'ahs? He said: No. He (the Holy Prophet) said: Stand and observe them
Reference: Muslim 2023