On Sunday, Jubeir commented on the statement adopted at the summit, saying that the Arab League condemned the use of chemical weapons by Syrian authorities, however the released text of the document does not include the statement.
Leaders of Arab nations are calling for an worldwide investigation into the suspected use of chemical weapons in Syria.
Discussions during the summit will shed light on the crisis in Syria following a tripartite strike by the US, France and the United Kingdom on several military and research targets in Syria.
Saudi Arabia, which is hosting the summit in its Eastern Province city of Dhahran, is likely to seek Arab support to pile the pressure on Iran, analysts say.
They will also reiterate their commitment to peace that leads to the creation of an independent Palestinian state with East Jerusalem as its capital in line with the 2002 Arab Peace Initiative, which offers Israel normal ties with the Arabs in return for withdrawal from territories it occupied in 1967.
But King Salman avoided any mention of Syria in his address, as a seat marked "Syrian Arab Republic" sat empty in the hall.
The meeting was chaired by Saudi King Salman.
The question of Jerusalem is also likely to figure prominently at the summit as the United States prepares to move its embassy there from Tel Aviv after declaring the disputed city the capital of Israel in a break with decades of worldwide diplomacy.
The statement also called for more global sanctions on Iran and urged it to withdraw "its militias" from Syria and Yemen.
Salman told leaders from across the 22-member Arab League that Iran was to blame for instability and meddling in the region.
The stand-off between Qatar and Saudi Arabia, UAE, Bahrain and Egypt is also not expected to feature. Doha denies the charges.
The Qatari delegation is being headed by Doha's permanent representative to the Arab League, Saif bin Muqaddam al-Buainain, Qatar's state news agency said, without elaborating.
"We renew our strong condemnation of Iran's terrorist acts in the Arab region and reject its blatant interference in the affairs of Arab countries", he said.
Unveiled during the opening of the Dhahran-hosted 29th Arab summit, the donation will be dedicated to maintenance of Islamic heritage in the city.
Sheikh Tamim returned to Doha on Saturday from a U.S. trip where he met Trump.
Ahead of the summit, the four boycotting nations reaffirmed that their demands on Qatar - including closing Al Jazeera television station and reducing ties with Iran - were "a necessary basis" for a resolution to the crisis.