It is narrated from Hazrat Umm Kulthum (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) said: "That person is not a liar who says something in order to reconcile between people."
Hadith Referenceمسند احمد / من مسند القبائل / 27271
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد حسن