Not graded
Companion’s words (mawquf) Sunan ad-Darimi 104
أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ سَعِيدٍ حَدَّثَنَا حَفْصٌ عَنْ أَشْعَثَ عَنْ ابْنِ سِيرِينَ أَنَّهُ كَانَ لَا يَقُولُ بِرَأْيِهِ إِلَّا شَيْئًا سَمِعَهُ
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ad-Darimi (No. 104).