Narrates Ibne Umer ,He says that “When We Inquired from the Holy PROPHET (SAWW) about Hazrat ALI (ASWS) (in an objectionable tone) ,the Holy PROPHET (SAWW) got infuriated and said.
“What has happened to these people who ask me about him whose respect and position near ALLAH (SWT) is the same as mine,
Take heed that the one who loves ALI (ASWS) indeed loves me, and the one who loves me with him ALLAH (SWT) is definitely pleased, and that will suffice for paradise.
Take heed that the one who loves ALI (ASWS) will not meet his death till he drinks the water of Kausar, tastes the fruit of Tuba and sees his palace in heaven , in this world itself.
Take heed that the namaz, fasts and rising (for the sake of religion )of the one who loves ALI (ASWS) will be accepted and all his prayers will be answered.
Take heed that the one who loves ALI (ASWS) for him would the angels seek forgiveness and for him all the 8 gates of heaven be opened and he would enter heaven unaccounted from which ever gate he wishes.
Take heed that the one who loves ALI (ASWS) would receive his books of accounts in his right hand, and ALLAH (SWT) would take his accounts as He would take the account of PROPHET (SAWW)s.(ie with utmost respect)
Take heed that the one who loves ALI (ASWS) for him will ALLAH (SWT) reduce the difficulty at the time of death and will make his grave as one of the gardens of paradise.
Take heed that the one who loves ALI (ASWS) to him will ALLAH (SWT) give as many fairys (Houries) as the blood vessels in his body and will accept his intercession in favor of 80 people from his family and will grant him a fairy (Hourie) and a city in heaven equal to the number of royas (roughly translates are hair or pores ) on his body.
Take heed that the one who loves ALI (ASWS) to him will ALLAH (SWT) send the angel of death with the same splendor as he sends to the PROPHET (SAWW)s , will protect him from the fright of Munkir and Nakir, will enlighten his face and he will be with Hazrat Hamza (as) the leader of the martyrs (before Karbala ) in paradise.
Take heed that the one who loves ALI (ASWS), in his heart will ALLAH (SWT) establish wisdom and will make words of goodness flow from his tongue and will open the doors of mercy on him.
Take heed that the one who loves ALI (ASWS) his name in the heavens and earth would be slave of ALLAH (SWT)
Take heed that the one who loves ALI (ASWS), an angel announces from heaven, telling him, O, servant of
ALLAH (SWT) , ALLAH (SWT) has forgiven all your past sins and start your accounts afresh.
Take heed that the one who loves ALI (ASWS),on the day of Judgment he will come with such splendor that his face will be enlightened like that of the full moon on a dark night.
Take heed that the one who loves ALI (ASWS), on his head will ALLAH (SWT) place a magnificent crown and will bestow on him a gown of respect.
Take heed that the one who loves ALI (ASWS), will pass from the bridge like lightening.
Take heed that the one who loves ALI (ASWS),for him will be written safety from hell, the bridge and punishment of the hereafter and his books of accounts would not be opened and nor for him be put up the scale for weighing deeds and he will be told to enter into heaven without any accounting.
Take heed that the one who loves ALI (ASWS),with him will the angles shake hands and him will the Prophets come to visit and ALLAH (SWT) (s.w.t.) will fulfill all his needs.
Take heed that the one who loves Aale Mohammed (ASWS) will not be frightened from accounting, the scale and the bridge.
Take heed that the one who dies on the love OF AALE MOHAMMED (ASWS) I take guarantee that he will be with the Prophets in heaven.
Take heed that the one who dies on the enmity of AALE MOHAMMED (ASWS), will not be able to smell the fragrance of heaven.
(Ref: Fazail - ush - Shia By Shaikh Sudook, Hadees No. 1)