Jami` at-Tirmidhi 3770
جامع الترمذي#3770SahihNarrated 'Abdur-Rahman bin Abu Nu'm:that a man from the people of Al-'Iraq asked Ibn 'Umar about the blood of a gnat that gets on the clothes. Ibn 'Umar said "Look at this one, he asks about the blood of a gnat while they killed the son of the Messenger of Allah (ﷺ)! And I heard the Messenger of Allah (ﷺ) said: 'Indeed Al-Hasan and Al-Husain - they are my two sweet basils in the world
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 49:169