Not graded
Companion’s words (mawquf) Musnad Ahmad 13434
حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ عَنْ شُعْبَةَ حَدَّثَنَا قَتَادَةُ عَنْ أَنَسٍ قَالَ الْحَجَرُ الْأَسْوَدُ مِنْ الْجَنَّةِ
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ahmad (No. 13434).