784. Leading Animals on Shabbos

Shabbos 20:8

One may lead an animal in the public domain with its reins and bridle as long as they are appropriate for this type of animal, such as a neck ring for a horse, a rope tied to a camel’s mouth, an iron bit for a she-camel and a muzzle for a dog. If one took an animal out with an inappropriate bridle, either because it is insufficient (like a rope tied in a horse’s mouth) or because it is excessive (like a neck ring for a donkey or a muzzle for a cat), then it is considered to be a burden on the animal.

Shabbos 20:9

One may not tie camels together and lead them; one may not lead them on Shabbos even if they were tied together on Friday. One may, however, gather the camels’ ropes in his hand so long as none of the ropes hang more than a handbreadth outside of his hand and the rope from each camel's mouth to his hand is at least a handbreadth from the ground. The reason one may not lead camels tied to one another is because this is how they are led to the market where animals are sold and raced. This is also why one may not go out with an animal wearing a bell around its neck even if its bell is silenced.