Musnad Ahmad 5:15

Abdullah narrated to us, Nasr ibn Ali al-Azdi narrated to me, Ali ibn Ja’far ibn Muhammad ibn Ali ibn al-Husayn ibn Ali informed me, my brother Musa ibn Ja’far narrated to me, from his father Ja’far ibn Muhammad, from his father, from Ali ibn al-Husayn, from his father, from his grandfather, that the Messenger of Allah, peace and blessings of Allah be upon him, took the hand of Hasan and Husayn and said: "Whoever loves me and loves these two, and their father and their mother, will be with me in my rank on the Day of Resurrection."