The phrase is Egyptian dialect for this is the generosity of God, a common expression of thanks for provision, luck or kindness. As a soundboard clip it circulates mainly among Arabic-speaking users, who reuse the short recording out of context for comic gratitude. Its appeal comes from that shift in scale, applying a deeply sincere religious thank-you to everyday wins like extra food, a discount or help from a friend. That everyday reuse, rather than a single known source scene, is what keeps the phrase recognisable online.