سنن ابن ماجه

It was narrated from ‘Asim bin Kulaib that his father said: “We were with a man from among the Companions of the Messenger of Allah (ﷺ) who was called Mujashi’, from Banu Sulaim, and sheep became scarce. He ordered a caller to call out that the Messenger of Allah (ﷺ) used to say: ‘A Jadha’a suffices for whatever a two-year-old sheep suffices.’”