Jarba arrived in Cairo on Wednesday morning for talks with Arab League and Egyptian officials. He is expected to meet with Arab League chief Nabil al-Arabi and Egyptian interim Foreign Minister Nabil Fahmi, the source told Anadolu Agency.
According to the diplomatic source, Jarba will also meet members of the National Coordination Body for Democratic Change in Syria – a Syrian opposition umbrella group – to discuss their possible inclusion in the opposition delegation to the next round of talks, slated for February 10.
The first round of Geneva II talks, aimed at resolving the ongoing crisis in violence-wracked Syria, kicked off in Switzerland on January 22, but wrapped up last Friday without reaching a deal.
Jarba's apparent effort to enlarge his delegation comes on the heels of criticism by Syrian Foreign Minister Walid al-Muallem and his Russian counterpart Sergey Lavrov, who have charged that the Syrian opposition delegation was not representative of all Syrian opposition factions.
The two ministers went on to demand that the delegation include figures from across the spectrum of the Syrian opposition.
Jarba's current visit to Cairo – his second in as many months – was not announced in advance by the Syrian opposition alliance.
Syria has been in the throes of conflict since 2011 when a peaceful uprising against President Bashar al-Assad escalated into civil war following a violent government crackdown.
According to the London-based Syrian Observatory for Human Rights, more than 136,000 people have been killed since the beginning of the Syrian crisis in March 2011.