Musannaf Ibn Abi Shaybah 29679 — The qasamah, and those who did not

Yahya bin Abi Ishaq said: I heard Salim bin Abdullah speak when a group of Banu Layth had made ready to swear the next day in a case of qasamah. He said: "O servants of Allah! People will swear to something they did not see, at which they were not present, and to which they were not witnesses. If I had authority in this matter I would certainly punish them," or he said, "I would give them an exemplary punishment, or I would make them an example, and I would not accept their testimony."