In 289 domestic appearances for Jazira, he has 199 goals.
Mokhtar Dahari Malaysia — 89 4.
The Islanders suffered an early blow as defender Amey Ranawade was stretched off to be replaced by Methab Singh just nine minutes into the game.
Mabkhout slammed the ball into the bottom corner to double his side's lead.
The international friendly matches are being played as part of preparations for the joint qualification round of 2022 World Cup and 2023 Asian Cup to be played in June.
The loss dropped the Islanders to the bottom of Group B.