Saudi Deputy Crown Prince Mohammed bin Salman, who is also defence minister, announced the new coalition in December.
A Western diplomat said at the time that details of how the grouping would work remained unclear and "they don't have the infrastructure" yet to run such a coalition.
"This is official now, that they will meet end of March," the Saudi source said, without giving a date.
The source added that the coalition now has 35 members, up from the 34 announced initially.
Saudi Arabia said the alliance would share intelligence, combat violent ideology and deploy troops if necessary.
The kingdom is a member of the US-led coalition that has been bombing the Islamic State group in Iraq and Syria for more than 18 months.
On Monday, Saudi Foreign Minister Adel al-Jubeir said his country was ready to deploy special forces to Syria if the coalition decides to begin a ground operation.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
