Where does the poem "Whales, Flying Horses and Swallows" come from?

Whales flying into the sky are too outrageous. I have never heard of them

It should be "horses stepping on flying swallows"! !

Ma Ta Fei Yan, also known as Ma Chao Long Que, is an outstanding representative of the bronze art of the Eastern Han Dynasty. A thousand-mile horse is galloping. It has a strong body, its head is raised, its tail is raised, its mouth is open, its mouth is neighing, its three legs are in the air, and there is a flying bird under its right hind hoof. Birds spread their wings and look back in astonishment. Everything happens in an instant, but it gives people an extremely broad space for imagination. Ancient Chinese craftsmen used artistic techniques that combined realism and romanticism, and used rich imagination, exquisite conception, and skillful craftsmanship to perfectly combine galloping horses and flying birds, using the swiftness of flying birds to set off the speed of galloping horses. , vivid in shape and ingeniously conceived, it integrates the unruly momentum of a galloping horse with a plain and stable mechanical structure. Its vigorous vitality and indomitable momentum make it a symbol of the Chinese nation.