Hadith #4624 (Sunan Abi Dawud)
Book: Model Behavior of the Prophet (Kitab Al-Sunnah)
Narrator(s): Hilal bin Bashr bin Mhbwb هلال بن بشر بن محبوب, Uthman bin Muslim/Sulaiman عثمان بن مسلم/سليمان بن جرموز البتي
Grade: Sahih

If we learnt that the remark of al-Hasan would reach the extent that it has reached, we would write a book for his withdrawal and call witnesses to him; but we said: This is a remark that surprisingly came out (from him) and it will not be transmitted to others.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-4624/