The victory takes Ismaily to 37 points in 11th place, while Dakhleya remain second bottom with 32 points ahead of the final round.
Dakhleya must win their last match against Aswan to have any chance of avoiding relegation, depending on the result of Ghazl El-Mahalla's match.
Talae El-Gaish also boosted their survival hopes with a 1-0 win over Aswan. Ahmed Moteab scored the only goal of the game with a long-range strike. El-Gaish are now 14th in the table on 36 points, while Aswan are stuck in 15th place on 33 points.
Ghazl El-Mahalla and NBE Club played out a 0-0 draw in a tight match. The result leaves NBE Club in 12th place on 36 points, while Ghazl El-Mahalla are in the relegation zone with 33 points.
With only one round of matches remaining, NBE Club, Smouha and Talae El-Geish, who have each 36 points, need only a point to secure their survival. However, Aswan, Ghazl El-Mahalla and Dakhleya face an anxious wait to see if they can avoid relegation.
(For more sports news and updates, follow Ahram Online Sports on Twitter at @AO_Sports and on Facebook at AhramOnlineSports.)