Narrated [Abu Hurairah (RA)]:

Umar came over Hassan while reciting poetry inside the mosque and looked at him sternly, then he (Hassan) said: "I used to recite poetry inside it (the mosque) in the presence of one who is more pious than you [i.e. the Prophet (ﷺ)]". [Agreed upon].

وَعَنْهُ ‏- رضى الله عنه ‏- { أَنَّ عُمَرَ ‏- رضى الله عنه ‏- مُرَّ بِحَسَّانَ يَنْشُدُ فِي اَلْمَسْجِدِ , فَلَحَظَ إِلَيْهِ , فَقَالَ : "قَدْ كُنْتُ أَنْشُدُ , وَفِيهِ مَنْ هُوَ خَيْرٌ مِنْكَ } .‏ مُتَّفَقٌ عَلَيْهِ .‏ [1]‏