Hadith 5:516
'Abd al-Rahim narrated to us, from Yahya ibn Sa'id, from Muhammad ibn Yahya ibn Habban, that two elders from Ashja' informed him that Muhammad ibn Maslamah al-Ansari, one of the companions of Badr, used to stand over them to assess their livestock during the time of 'Umar ibn al-Khattab. He would sit, and whoever brought him a sheep that fulfilled his right, he would accept it from him.
حدثنا عبد الرحيم عن يحيى بن سعيد عن محمد بن يحيى بن حبان أن شيخين من أشجع أخبراه أن محمد بن مسلمة الأنصاري من أصحاب بدر كان يقوم عليهم فيصدق ماشيتهم في زمن عمر بن الخطاب فكان يجلس فمن أتاه بشاة فيها وفاء من حقه قبلها منه