Hadith 17:492
Waki’ narrated to us, from Sufyan, from al-A’mash, from Shurayh, who said: They claim that the "zamilah" (the pack-animal/carrier) of lying is [the phrase] "they claim," so let not lying be in its origin.
حدثنا وكيع عن سفيان عن الأعمش عن شريح قال زعموا زاملة الكذب فلا يكون الكذب بأصله