Musnad Ahmad 3703

It was narrated that Simak said: I heard 'Abdur-Rahman bin ‘Abdullah narrate from his father-Shu'bah said: I think he attributed it to The Messenger of Allah (ﷺ) - that he said: “The likeness of the one who helps his clan in an unjust cause is that of the camel that falls into a dry well and stretches out its tail (trying to get out).”