Ahmad bin Mohammad bin Jarrah narrated from the judge Amr bin Al-Husain, from Aminah Bint Ahmad bin Thahl bin Sulaymaan Al-Aamash, from her father, from Sulaymaan bin Mahran, from Mohammad bin Katheer, from Abi Khaithama, from Abdullah son of Omar, who said:
The MESSENGER of ALLAH (SWT) said:
I am your Warner and ALI BIN ABI TALEB (ASWS) is your guide.
Verily you are a warner and for every group there is a guide (13:7)
Through HASAN (ASWS) you receive ALLAH (SWT)’s beneficence and through HUSAIN (ASWS) you will achieve either salvation or damnation.
HUSAIN (ASWS) is a door from the doors of Paradise; ALLAH (SWT) has made the smell of Paradise HARAAM (unlawful) on those who fight HUSAIN (ASWS).
(Ref :Bihar V35 P405 H28. Ghayatol Maram P235 H6. Borhan V2 P181. Khawarezmi in Maqtal V1 P14. )