صَحِيحُ مُسْلِمٍ
Sahih Muslim 875 f
The Book of Prayer - Friday
Greeting (prayers upon entering the masjid) while the Imam is preaching
وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا لَيْثٌ، ح وَحَدَّثَنَا مُحَمَّدُ بْنُ رُمْحٍ، أَخْبَرَنَا اللَّيْثُ، عَنْ أَبِي الزُّبَيْرِ، عَنْ جَابِرٍ، أَنَّهُ قَالَ جَاءَ سُلَيْكٌ الْغَطَفَانِيُّ يَوْمَ الْجُمُعَةِ وَرَسُولُ اللَّهِ صلى الله عليه وسلم قَاعِدٌ عَلَى الْمِنْبَرِ فَقَعَدَ سُلَيْكٌ قَبْلَ أَنْ يُصَلِّيَ فَقَالَ لَهُ النَّبِيُّ صلى الله عليه وسلم " أَرَكَعْتَ رَكْعَتَيْنِ " . قَالَ لاَ . قَالَ " قُمْ فَارْكَعْهُمَا " .
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 Messenger of Allah (ﷺ) said: Have you observed two rak'ahs? He said: No. He (the Prophet) said: Stand and observe them
Sahih Muslim, 875 fSahihصحيح