Imam Hussain (AS) was the second grandson of Prophet Muhammad (PBUH&HP) and one of the dearest people in his regard. Many sayings has been narrated from Prophet Muhammad (PBUH&HP) about Imam Hussain (AS) and his great personality, including what follows:
1. Hussain ibn Ali's position in heaven is higher than his position on earth
Bihar al-Anvar, vol.36, p.205
2. Verily Hussain (AS) is the shining light of guidance and the ark of salvation.
Bihar al-Anvar, vol.36, p.205
3. Surely, there exists in the hearts of the believers, with respect to the martyrdom of Hussain (AS), a heat that never subsides.
Jami' ahadith, vol.12, p.556
4. Hussain (AS) is from me and I am from Hussain (AS), Allah loves those who love him.
Jami` at-Tirmidhi, vol.2, p.307
5. Hasan (AS) and Hussain (AS) are the masters of the youth in Paradise
Jami' ahadith, vol.8, p.594