It sounds like you’re looking for detailed information about the setting from Al-Qadim in relation to Dungeons & Dragons 5th edition , specifically regarding a "Zakhara 5e PDF."
Here is a detailed breakdown of what exists, what doesn’t, and how to get the official content. No. Wizards of the Coast has not released a full, dedicated campaign setting book for Zakhara (the Land of Fate) for 5th edition as a standalone PDF or hardcover.