Sahih Muslim 57:45

Abū Āmir Abd Allah bin Barrād al-Ash’arī narrated to us, Abū Usāmah narrated to us, on authority of Mufaḍḍal, on authority of Mughīrah, he said I heard ash-Sha’bī saying:

‘al-Hārith al-A’war narrated to me,’ and he [ash-Sha’bī] was testifying that he was one of the liars’.