It was narrated that "Abdullah bin Ja"far said:

When the Messenger of Allah (ﷺ) returned from a journey, he would be met by the boys of his household. On one occasion he came from a journey, and others beat me to him. But he carried me in front of him (on his mount). Then one of the two sons of Fatimah came, either Hasan or Husain, and he put him behind him. And we entered Madinah, three on one mount.