Musannaf Ibn Abi Shayba 13:2236

Abu Bakr narrated to us, he said: Abu Usamah narrated to us, from al-Walid ibn Kathir, from Ma'bad ibn Ka'b ibn Malik, from Abu Qatadah, that he heard the Prophet, peace and blessings of Allah be upon him, saying: "Beware of frequent swearing in selling, for it finds a market, then it wipes out."