Elneny visited the Cairo club at the weekend for a ceremony held in his honour.
And president Mohsen Salah insisted the defensive midfielder has promised to end his career with the Mountain Wolves.
Salah said: "Players who represented Al Mokawloon are always loyal. It is something you learn here.
"We are proud of Elneny and Salah, who started their careers here.
"Elneny's visit made us really happy, and it was a good chance for us to give him honorary lifetime membership.
"What made us even happier is that Elneny promised us that he will come back to end his career here with Al Mokawloon."