Musnad Ahmad 947:7

Ishaq ibn Sulayman narrated to us, Malik ibn Anas narrated to us, from al-Zuhri, from Sinan ibn Abi Sinan al-Du'ali, from Abu Waqid al-Laythi, who said: We went out with the Messenger of Allah, may Allah bless him and grant him peace, to Hunayn. He then mentioned the meaning of the hadith of Ma'mar, and the hadith of Ma'mar is more complete.