Hadith.5348 - Hammad narrated from Al-Halabi, who narrated from Abu Abdullah (as) that he was asked about a man passing through one of the paths of the Muslims, and his animal strikes a person with its leg.
Imam (as) said
"He is not liable for what it strikes with its leg, but he is liable for what it strikes with its front legs because its hind leg is behind him if he is riding. However, if he is leading the animal, then by the permission of Allah (swt), he has control over its front legs and can place them wherever he wishes."