that the Messenger of Allah (ﷺ) said: "Husain is from me, and I am from Husain. Allah loves whoever loves Husain. Husain is a Sibt among the Asbat."
Jami` at-Tirmidhi Book 49, Hadith 174
← Previous Hadith "The Messenger of Allah (ﷺ) was delivering a Khutbah to us when Al-Hasan and Al-Husain came, wearing red shirts, walking and falling down. So the Messenger of Allah (ﷺ) descended from the Minbar and carried them, and placed them in front of him. Then he said: 'Allah spoke the Truth: Indeed, your wealth and your children are a trial (64:15). I looked at these two children walking and falling down, and I could not bear patiently anymore until I interrupted my talk and picked them up."

Jami` at-Tirmidhi Book 49, Hadith 173 Next Hadith → "None of them used to resemble the Messenger of Allah (ﷺ) more than Al-Hasan bin 'Ali."

Jami` at-Tirmidhi Book 49, Hadith 175