King Salman also announced a $150 million donation for the maintenance of Islamic heritage in East Jerusalem..
The Saudi monarch renewed accusations for Iran of supporting terrorism and interfering in Arab affairs.
Tunisia has been chosen as the location for the 30th Arab Summit, taking place in March 2019.
The summit will offer an opportunity for Arab leaders to hold smaller meetings on the sidelines to discuss and coordinate on a wide range of issues, including how to move forward on Syria, how to handle the tense situation in Gaza, and what to do about Libya.
On the Palestinian issue, Aboul-Gheit said Arab efforts have succeeded in taking a firm stand against the December decision by the United States to acknowledge Jerusalem as the capital of Israel, describing the American decision as a "regression in our Palestinian cause".
Sheikh Mohammed bin Rashid, the Vice President and Ruler of Dubai, arrived in Saudi Arabia on Saturday, ahead of leading the country's delegation to the 29th Arab League Summit.
"We renew our strong condemnation of terrorist acts carried out by Iran in the Arab region, and we reject its blatant interference in the internal affairs of Arab countries", he said.
Adel al-Jubeir was speaking at a news conference after the end of an Arab League summit in Saudi Arabia, which had not mentioned Syria in a statement read out at the close.
Most rockets in Western attacks on Syria were intercepted: Russian Federation
Foreign Minister Sergei Lavrov warned Western intervention in Syria would "lead to new waves of migrants to Europe". Any U.S. strike would probably involve the Navy.
Opening the 29th Arab League summit, the king criticised the United States decision to transfer its embassy in Israel to Jerusalem and described "terrorism" as the biggest challenge facing Arab leaders.
King Abdullah II of Jordan said the Arab World has the duty to support the Palestinians, which he called "the callers for peace", to get their legal rights in establishing the state.
Jerusalem remains at the heart of the Middle East conflict, with Palestinians hoping that East Jerusalem - occupied by Israel since 1967 - might eventually serve as the capital of a Palestinian state.
Saudi Arabia pushed for a tough, unified stance against Iran at the annual gathering of the 22-member Arab League.
Qatar did not attend due to an ongoing diplomatic crisis centered on Doha and Riyadh's struggle with on another for regional influence.
President Abdel Fatah al-Sisi said, "it is not just the issue of Arabs, but an issue of rightness against force".
Tensions have eased slightly in recent months but Qatar still only sent its representative to the Arab League to the Dhahran summit.
Iran is backing Houthi rebels that Riyadh opposes in Yemen and on Sunday Salman praised "the UN Security Council's statement denouncing the Iranian-made ballistic missile fire on Saudi cities".