It is narrated from Sayyiduna Ibn Amr, may Allah be pleased with him, that the Noble Prophet, peace and blessings be upon him, said: "There is no vow or oath in matters over which a person has no ownership, or in acts of disobedience to Allah, or in severing ties of kinship. Whoever swears an oath about something and then sees something better, let him leave the former and choose the better, for abandoning the former is its expiation."