(43) General Behavior (Kitab Al-Adab)
كتاب الأدب
(95) Chapter: What has been narrated about poetry
(95) باب مَا جَاءَ فِي الشِّعْرِ
Sunan Abi Dawud 5013 

Sa'id said:

Umar passed by Hassan when he was reciting verses in the mosque. He looked at him. Thereupon he said: I used to recite verses when there was present in it the one who was better than you (i.e. the Prophet).

حَدَّثَنَا ابْنُ أَبِي خَلَفٍ، وَأَحْمَدُ بْنُ عَبْدَةَ، - الْمَعْنَى - قَالاَ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، عَنْ سَعِيدٍ، قَالَ مَرَّ عُمَرُ بِحَسَّانَ وَهُوَ يُنْشِدُ فِي الْمَسْجِدِ فَلَحَظَ إِلَيْهِ فَقَالَ قَدْ كُنْتُ أُنْشِدُ وَفِيهِ مَنْ هُوَ خَيْرٌ مِنْكَ ‏.‏
Grade :  Sahih (Al-Albani) صحيح  (الألباني)حكم :
Reference : Sunan Abi Dawud 5013
In-book reference : Book 43, Hadith 241
English translation : Book 42, Hadith 4995