The ruling on touching a donkey and drinking camel milk while in a state of wudu'

Question:
He says: We are livestock owners. We have raised donkeys in the house, and when one of us performs wudu', he may touch the donkey after his wudu'. Does the wudu' become invalid or not? And does drinking camel milk also invalidate the wudu' or not?

Answer:
It is pure. The donkey, which is the young of the camel, is pure, so there is no harm in touching it. Its length is pure, its excrement is pure, and its saliva is pure; it is a pure animal. It does not [invalidate the wudu']. As for drinking camel milk, this does not invalidate the wudu', because what invalidates the wudu' is eating camel meat. As for drinking the milk of the camel, this does not fall under the invalidation of wudu' at all.