Not graded
Sunan ad-Darimi 628
أَخْبَرَنَا أَبُو نُعَيْمٍ حَدَّثَنَا حَسَنٌ عَنْ لَيْثٍ عَنْ طَاوُسٍ قَالَ رُبَّمَا رَأَى ابْنُ عَبَّاسٍ الرَّأْيَ ثُمَّ تَرَكَهُ
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ad-Darimi (No. 628).