Sayyidah Umm Kulthum bint Uqbah (may Allah be pleased with her) said: I never saw the Messenger of Allah (peace and blessings be upon him) permit lying in any matter except in three situations, which the Messenger of Allah (peace and blessings be upon him) did not count as lying: "A man who makes peace between people and adds something to what he says, intending reconciliation by it; a man who speaks in war; and a man who speaks to his wife, and a wife who speaks to her husband."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21655