Shia sheikh ibn Qawlaveyh in his book “Kamil az ziyarat” narrated from imam Jafar as-Sadiq:
“One day in the house of hazrat Fatima (a), the Messenger of Allah (s) took imam Huseyn (a) in his arms. Suddenly he cried and made prostration. Some time later, the hazrat said: ‘Oh Fatima! Oh Muhamad’s daughter, The Most High in this hour, in this house has shown Himself to me in the most beautiful form and the best manner and said: ‘Oh Muhamad! Do you love Huseyn?’ I said: ‘ He is my eye’s light, my sweet-scented plant, fruit of my soul and leather between two of my eyes’.
Then, he put his hand on Huseyn’s blessed head and said: ‘Oh Muhammad, may this newly born kid, upon whom are My blessing and greeting, mercy and pleasure, be blessed. My anger, curse and punishment, humiliation and disgrace will be upon his killer, also upon person who hates him and goes against him. Know that he is the leader of the first and the last martyrs in this world and the hereafter and the leader of the youth among the creation in the Paradise’.”