Mawla Ali is the divider of heaven and hell
Tabaqat al-Hanabila, vol. 2, p. 358
He said: I heard Muhammad ibn Mansur say: We were with Ahmad ibn Hanbal, and a man said to him: "O Abu Abdillah, what do you say about this hadith that is narrated, that Ali said: 'I am the divider of the hell'?"
He said: "And what do you deny about that? Have we not narrated that the Prophet ﷺ said to Ali: 'None loves you except a believer, and none hates you except a hypocrite'?"
We said: "Yes."
He said: "So where is the believer?" We said: "In Paradise."
He said: "And where is the hypocrite?" We said: "In the Fire."
He said: "Then Ali is the divider of the hell."
