حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَنْبَأَنَا الثَّوْرِيُّ، عَنْ عَاصِمِ بْنِ كُلَيْبٍ، عَنْ أَبِيهِ، قَالَ كُنَّا مَعَ رَجُلٍ مِنْ أَصْحَابِ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ يُقَالُ لَهُ مُجَاشِعٌ مِنْ بَنِي سُلَيْمٍ فَعَزَّتِ الْغَنَمُ فَأَمَرَ مُنَادِيًا فَنَادَى أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ كَانَ يَقُولُ ‏"‏ إِنَّ الْجَذَعَ يُوفِي مِمَّا تُوفِي مِنْهُ الثَّنِيَّةُ ‏"‏ ‏.‏

It wasnarrated from ‘Asim bin Kulaib that his father said: “We werewith a man from among the Companions of the Messenger of Allah (PBUH)who was called Mujashi’, from Banu Sulaim, and sheep became scarce.Heordered a caller to call out that the Messenger of Allah (PBUH)used tosay: ‘A Jadha’a suffices for whatever a two-year-oldsheep suffices.’” Translation Not Available

Book Ref: Sunan Ibn Majah Book 26 Hadith 3140
Web Ref:  Sunan Ibn Majah Vol 4 Book 26 Hadith 3140