Abu Dawud said: Al-Thawri has transmitted it from 'Awn from 'Abd al-Rahman b. Sumair or Sumairah ; and Laith b. Abu Sulaim transmitted it from 'Awn from 'Abd al-Rahman b. Sumairah.
Abu Dawud said: Al-Hasan b. 'Ali said to me: Abu al-Walid transmitted this tradition to us from Abu 'Awanah, and said: It (the name Ibn Samurah) is in my notebook Ibn Sabrah. The people also transmitted it as Samurah and Sumairah. These are wordings of Abu al-Walid.
In-book : Book 37, Hadith 21
English translation : Book 36, Hadith 4247