"And if a man wants to take a concubine and his wife says to him "I will kill myself," he is not prohibited [from doing so], because it is a lawful act, but if he abstains to save her grief, he will be rewarded, because of the hadith "Whoever sympathises with my community, God will sympathise with him.""
Al-Durr al-Mukhtar

January 1, 1970