Musannaf Ibn Abi Shaybah 900 — A man putting his hand into a vessel

Aishah bint Sa'd said: Sayyiduna Sa'd (may Allah be pleased with him) would order his slave-girl to bring water. She would draw it from the jar and bring the water for ablution, and she would put her hand into it. Sayyiduna Sa'd would be told that she was menstruating, and he would say: "Her menstruation is not in her hand."