It is narrated from Sayyiduna Wathilah bin al-Asqa' (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "It is not for a woman to spend anything of her wealth except with her husband's permission, while she is in his marriage."
Hadith Referenceالمعجم الكبير للطبراني / باب الواو / 18426