Not graded
Companion’s words (mawquf) Sunan ad-Darimi 392
أَخْبَرَنَا الْحَكَمُ بْنُ الْمُبَارَكِ قَالَ أَخْبَرَنِي بَقِيَّةُ عَنْ عُتْبَةَ بْنِ أَبِي حَكِيمٍ عَنْ أَبِي الدَّرْدَاءِ قَالَ وَمَا نَحْنُ لَوْلَا كَلِمَاتُ الْعُلَمَاءِ
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ad-Darimi (No. 392).