The Holy Spirit (Jibril, peace be upon him) supporting Hassan (may Allah be pleased with him)

It is narrated from Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said to Sayyiduna Hassan bin Thabit (may Allah be pleased with him): "Indeed, the Holy Spirit (Sayyiduna Jibril, peace be upon him) is with you as long as you contend with them (the idolaters, through poetry)."
This hadith has a sahih (authentic) chain, but the two Shaykhs did not record it.

It is narrated from Sayyidah Aishah (may Allah be pleased with her) that Sayyiduna Hassan bin Thabit (may Allah be pleased with him) asked the Messenger of Allah (peace and blessings be upon him) for permission to satirise the idolaters. The Messenger of Allah (peace and blessings be upon him) said (inquiringly): "But what about my lineage, which is among them (Quraysh)?" Hassan said: "I will draw you out from among them (unharmed) just as a hair is drawn out of kneaded dough." Hisham says that my father (Urwah) was about to speak ill of Hassan in the presence of Sayyidah Aishah (may Allah be pleased with her), and she said (forbidding him): "Do not speak ill of Hassan, for he used to defend the Messenger of Allah (peace and blessings be upon him)."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it in this way (with these words). However, Imam Muslim recorded it as a long hadith in which the complete ode is also mentioned: "You satirised Muhammad (peace and blessings be upon him) and I answered on his behalf, and with Allah is the best reward for that."