The versatile Ghanaian joined the North African side as a free agent in January this year.
Abbey 24, has parted ways with Ismaily after six months with unexplained eeasons.
Abbey had a great season with Hearts of Oak in the 2016/17 season where he scored 14 goals in 28 matches.
The former Black Stars B player last game for Ismaily was a five minutes appearance against El Raja on April 22, 2018.
It is unclear where the versatile player will head next after terminating his contract.