In Islamic tradition, Haizum is the horse of the archangel Gabriel. It is a white, flaming, spiritual horse that has a pair of wings like that of a pegasus and can fly swiftly from one cosmic plane to another in a second. Haizum was God's gift to Gabriel for pleasing Him.
A legend based on sura 20:96 relates that the dust from the hoofprints of Haizum was thrown into the mouth of the Golden Calf.
References
Haizum Wikipedia(Text) CC BY-SA