Leaving the Oasis Jean-Léon Gérôme (1824-1904)

The picture has something of this: mammal, people, camel, seated, group, cavalry, transportation system, desert, recreation, sand, landscape, daylight, man, tree, vehicle, leisure, Bedouin, veil.
Perhaps it’s a painting of a group of people riding on the backs of horses next to a body of water with a dog on the side of the road.