Not graded
Companion’s words (mawquf) Musnad Ahmad 3887
حَدَّثَنَا يَحْيَى عَنْ التَّيْمِيِّ عَنْ أَبِي عُثْمَانَ عَنْ ابْنِ مَسْعُودٍ مَنْ اشْتَرَى مُحَفَّلَةً وَرُبَّمَا قَالَ شَاةً مُحَفَّلَةً فَلْيَرُدَّهَا وَلْيَرُدَّ مَعَهَا صَاعًا
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ahmad (No. 3887).