It is narrated from Sayyiduna Samurah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When two men marry off a woman, the first has the greater right, and when two men buy one item, the first has the greater right."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6810