Musannaf Ibn Abi Shaybah 25733 — Drinking from the chip in a cup

Mujahid narrates concerning Sayyiduna Ibn Umar (may Allah be pleased with them both) and Sayyiduna Ibn Abbas (may Allah be pleased with them both) that they both said: Drinking from the broken part of a cup, or from near the handle of a cup, used to be disliked.