Not graded
Sunan ad-Darimi 3349
حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ أَخْبَرَنَا عَبْدُ الْمَلِكِ عَنْ سَعِيدِ بْنِ جُبَيْرٍ أَنَّهُ كَانَ يَخْتِمُ الْقُرْآنَ كُلَّ لَيْلَتَيْنِ
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ad-Darimi (No. 3349).