Talq ibn Ali (RA) reported that Allahs Messenger (SAW) said, "When a man calls his wife to satisfy his urge then she must go to him even if she is at the stove." [Sunan Tirmidhi (3/465) No. 1160, Sunan al-Kubra al-Nasa'i (8/187) No. 8922 and Musannaf Ibn Abi Shaybah (3/558) No. 17135]