Sunan Abi Dawud 2799
سنن أبي داود#2799SahihNarrated 'Asim b. Kulaib: On the authority of his father: We were with a man from the Companions of the Prophet (ﷺ) called Mujashi' who belonged to Banu Sulaim. There was a scarcity if goats (in those days). He commanded a man to announce (among the people); so he announced that the Messenger of Allah (ﷺ) used to say: A lamb may be given as full payent for that for which has full-grown animal is payment. Abu Dawud said: His name is Mujashi' b. Mas'ud
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih
In-book reference: 16:12