Not graded
Sunan ad-Darimi 816
أَخْبَرَنَا عَفَّانُ حَدَّثَنَا وُهَيْبٌ عَنْ خَالِدٍ قَالَ كَانَ مُحَمَّدٌ يَكْرَهُ أَنْ يَغْشَى الرَّجُلُ امْرَأَتَهُ وَهِيَ مُسْتَحَاضَةٌ
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ad-Darimi (No. 816).