the Messenger of Allah ﷺ entered the mosque, and saw them (his companions) in separate groups. He said: How is it that I see you in separate groups?  

دَخَلَ رَسُولُ اللَّهِ ﷺ الْمَسْجِدَ وَهُمْ حِلَقٌ فَقَالَ مَا لِي أَرَاكُمْ عِزِينَ  

It seems he liked collective gathering.  

كَأَنَّهُ يُحِبُّ الْجَمَاعَةَ  

When we came to the Prophet ﷺ, each one would sit down where there was room.  

كُنَّا إِذَا أَتَيْنَا النَّبِيَّ ﷺ جَلَسَ أَحَدُنَا حَيْثُ يَنْتَهِي