Musannaf Ibn Abi Shayba 13:2235

Abu Bakr narrated to us, he said: Yazid ibn Harun narrated to us, he said: Muhammad ibn Ishaq informed us, from Ma'bad ibn Ka'b ibn Malik, from Abu Qatadah, from the Prophet (peace be upon him): "Beware of frequent swearing, for it promotes [the merchandise] and then effaces [the blessing]."