It happened just before 4 a.m. at the 96th Street 6 train station.
Police say the man was slashed in the neck.
The suspect ran out of the station and fled on to the street.
The victim was transported to the hospital and remains stable.
No other information was provided about what led to the incident.
No arrests have been made.
ALSO READ | Man slashed during dispute on Lower Manhattan subway during evening rush
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