Bakr said:

The Prophet ﷺ sent Mu`adh for some of his work. He then transmitted the rest of the tradition mentioned above.

Abu Dawud said: This tradition is sounder of the two traditions.

حَدَّثَنَا وَهْبُ بْنُ بَقِيَّةَ، عَنْ خَالِدٍ، عَنْ دَاوُدَ، عَنْ بَكْرٍ، أَنَّ النَّبِيَّ ﷺ بَعَثَ أَبَا ذَرٍّ بِهَذَا الْحَدِيثِ . قَالَ أَبُو دَاوُدَ وَهَذَا أَصَحُّ الْحَدِيثَيْنِ .