It is narrated from Sayyiduna Samurah (may Allah be pleased with him) that the Prophet of Allah (peace and blessings be upon him) said: "Whichever woman both guardians marry off (separately), she belongs to the first of them, and whichever man sells one item to both men (separately), it belongs to the first of them."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6812