Not graded
Sunan ad-Darimi 2970
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ عَنْ ابْنِ إِدْرِيسَ عَنْ هِشَامٍ عَنْ الْحَسَنِ وَابْنِ سِيرِينَ قَالَا لَا يُوَرَّثُ الْحَمِيلُ إِلَّا بِبَيِّنَةٍ
This hadith has no English translation yet: the Arabic text, the reference and the grade are shown here.
Reported by Ad-Darimi (No. 2970, 2966).