On the authority of Ali, who said, ‘The Messenger of Allah (ص) informed me’:
“The first group that would enter Paradise is myself, Fatimah, Hasan and Husain.” I asked, ‘What would be the state of our lovers?’ He replied, ‘You would lead them to Paradise
Muttaki Hindi, Kanz al-Ummal, V. 12, page 98 narrated from Mustadrak Hakim Naishapuri (V.3, p.151) and Al-Sawa’iq al-Muharraqa (Ibn Hajar Haithami, page 153) and Zhakair ul-Uqba (Tabari, page 123) and other books.