He (the Prophet) turned to the people and said: When one of you comes (on Friday) while the imam is preaching, he should pray two rak'ahs and make them short.
أَنَّ سُلَيْكًا جَاءَ فَذَكَرَ نَحْوَهُ زَادَ ثُمَّ أَقْبَلَ عَلَى النَّاسِ قَالَ إِذَا جَاءَ أَحَدُكُمْ وَالإِمَامُ يَخْطُبُ فَلْيُصَلِّ رَكْعَتَيْنِ يَتَجَوَّزُ فِيهِمَا
[Machine] When Sulaykah came, the Messenger of Allah ﷺ was delivering a sermon, so he sat down. The Prophet ﷺ commanded him to pray two rak'ahs. Muhammad ﷺ mentioned in his hadith that Sulaykah then turned towards the people and said, "When one of you comes and the Imam is delivering a sermon, let him pray two rak'ahs as a precaution."
أَنَّ سُلَيْكًا جَاءَ وَرَسُولُ اللهِ ﷺ يَخْطُبُ فَجَلَسَ فَأَمَرَهُ النَّبِيُّ ﷺ أَنْ يُصَلِّيَ رَكْعَتَيْنِ قَالَ مُحَمَّدٌ فِي حَدِيثِهِ ثُمَّ أَقْبَلَ عَلَى النَّاسِ فَقَالَ إِذَا جَاءَ أَحَدُكُمْ وَالْإِمَامُ يَخْطُبُ فَلْيُصَلِّ رَكْعَتَيْنِ يَتَجَوَّزُ فِيهِمَا