Riyad as-Salihin

Abu 'Ali Talq bin 'Ali (May Allah be pleased with him) reported: Messenger of Allah (ﷺ) said, "When a man calls his wife to satisfy his desire, she must go to him even if she is occupied with the oven".

[At-Tirmidhi and An-Nasa'i, Imam At-Tirmidhi classified it as Hadith Hasan Sahih].