Sahih Bukhari Volume 5, Book 64, Hadith 4147

حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدَةُ، عَنْ هِشَامٍ، عَنْ أَبِيهِ، قَالَ ذَهَبْتُ أَسُبُّ حَسَّانَ عِنْدَ عَائِشَةَ فَقَالَتْ لاَ تَسُبَّهُ، فَإِنَّهُ كَانَ يُنَافِحُ عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم‏.‏ وَقَالَتْ عَائِشَةُ اسْتَأْذَنَ النَّبِيَّ صلى الله عليه وسلم فِي هِجَاءِ الْمُشْرِكِينَ قَالَ ‏"‏ كَيْفَ بِنَسَبِي ‏"‏‏.‏ قَالَ لأَسُلَّنَّكَ مِنْهُمْ كَمَا تُسَلُّ الشَّعْرَةُ مِنَ الْعَجِينِ‏.‏وَقَالَ مُحَمَّدٌ حَدَّثَنَا عُثْمَانُ بْنُ فَرْقَدٍ، سَمِعْتُ هِشَامًا، عَنْ أَبِيهِ، قَالَ سَبَبْتُ حَسَّانَ، وَكَانَ مِمَّنْ كَثَّرَ عَلَيْهَا‏

Narrated By Hisham's father : I started abusing Hassan in front of 'Aisha. She said, "Do not abuse him as he used to defend Allah's Apostle (against the infidels). 'Aisha added, "Once Hassan took the permission from the Prophet to say poetic verses against the infidels. On that the Prophet said, 'How will you exclude my forefathers (from that)? Hassan replied, 'I will take you out of them as one takes a hair out of the dough." Hisham's father added, "I abused Hassan as he was one of those who spoke against 'Aisha."