Kamal al-Labwani, of the so-called Syrian National Coalition (SNC), said that a coalition with Tel Aviv is the only way to oust the Syrian government.
Labwani noted that the overthrow of President Bashar al-Assad is among Israel’s main interests in Syria.
He also claimed strengthening of opposition groups in Syria could defuse the power of al-Qaeda-linked militant groups in the war-torn country.
The opposition leader spent 10 years behind bars in Syria before being released two years ago at President Assad’s order.
According to al-Alam, Labwani had earlier offered handing the Golan Heights to Tel Aviv in return for receiving military aid from the Israeli regime and using Israel’s assistance to enforce a no-fly zone over southern Syria.
"Why shouldn’t we be able to sell the Golan Heights because it is better than losing Syria and Golan at once," he told al-Arab newspaper in March.
In January, representatives of the Syrian government and the Western-backed opposition convened in Geneva to hold their first round of direct talks since the start of the crisis in Syria more than three years ago.
After several rounds of talks that continued up to mid-February, the two sides failed to reach any substantial outcome due to sharp differences, namely the SNC's persistence on the formation of a transitional government and the resignation of President Assad before the deadly militancy in the country was addressed.
Over 150,000 people have reportedly been killed and millions displaced due to foreign-backed militancy that has gripped Syria since 2011.
According to reports, the Western powers and their regional allies -- especially Qatar, Saudi Arabia, and Turkey -- are supporting the militants operating inside Syria.
NTJ/HH