Sunan an-Nasa'i 1585

It was narrated from Ibn Buraidah that:His father said: "While the Messenger of Allah (ﷺ) was on the minbar, Al-Hasan and Al-Husain came,wearing red shirts, walking and stumbling. He came down and picked them up, then said: 'Allah has spoken the truth: Your wealth and your children are only a trial.' I saw these two walking and stumbling in their shirts, and I could not be patient until I went down and picked them up