Hudhaifa said:
I ask my mother to let me go to the Prophet, pray the sunset prayer with him, and ask him to pray forgiveness for her and me. I went to the Prophet and prayed the sunset prayer along, with him, and he remained in prayer till he prayed the night prayer. When he went off, I followed him, and when he heard my voice he said, "Who is this? Is it Hudhaifa?" When I told him that it was, he said, "What do you require? God forgive you and your mother! Here is an angel who has never come down to earth before to-night. He asked his Lord's permission to give me a greeting and give me the good news that Fatima will be the chief lady among the inhabitants of paradise, and that al-Hasan and al-Husain will be the chief ones among the youths who go to paradise."
Tirmidhi transmitted it, saying this is a gharib tradition.