Not graded
Companion’s words (mawquf) Musnad Ahmad 507
حَدَّثَنَا وَكِيعٌ حَدَّثَتْنِي أُمُّ غُرَابٍ عَنْ بُنَانَةَ قَالَتْ مَا خَضَبَ عُثْمَانُ قَطُّ
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ahmad (No. 507).