Musnad Ahmad 1745

It was narrated that "Abdullah bin Ja"far said: One day the Messenger of Allah (ﷺ) seated me behind him on his mount, then he told me something in secret that I will never tell to anyone. When he relieved himself, what the Messenger of Allah (ﷺ) liked best to conceal himself with was a small hill or a cluster of date palms. One day he entered one of the gardens of the Ansar where he found a camel that came to him, groaning with tears in its eyes. - Bahz and "Affan said: When it saw the Prophet (ﷺ) it groaned with tears in its eyes. - The Messenger of Allah (ﷺ) stroked its back and behind its ears and it calmed down. He said: "Who is the owner of this camel?" A young man of the Ansar came and said: it belongs to me, O Messenger of Allah. He said: “Do you not fear Allah with regard to this animal that Allah has put in your possession? It is complaining to me that you keep it hungry and overburden it with work.”