Short answer. It ends automatically. Article 112 of the Family Code says that alienating your own exclusive property that your spouse administers automatically terminates their administration over it. The proceeds of the sale must then be turned over to you as the owner-spouse, not kept under your spouse's continued control.
What the law says
The alienation of any exclusive property of a spouse administered by the other automatically terminates the administration over such property and the proceeds of the alienation shall be turned over to the owner-spouse.
Family Code, Article 112 — Alienation Ends Delegated Administration. Read the full provision →
Selling the property ends the administration automatically
Article 112 states: the alienation of any exclusive property of a spouse administered by the other automatically terminates the administration over such property. The word automatically is doing real work here — the administering spouse's authority does not need to be formally revoked or contested through some separate act. The moment the owner-spouse alienates the property, whether by sale or another form of transfer, the other spouse's administration over that specific property simply ends by operation of law.
The proceeds belong to the owner-spouse
The article goes further than just ending the administration: the proceeds of the alienation shall be turned over to the owner-spouse. Whatever money or consideration comes from the sale is not something the previously administering spouse gets to keep managing under the old arrangement. Because the property was exclusively yours to begin with, the proceeds of selling it belong to you as owner, and the article requires them to be handed over accordingly.
This applies to exclusive property, not property you own together
Article 112 is limited to exclusive property — property that belongs to one spouse alone, which the other spouse had been administering on their behalf. It is not addressing conjugal or community property that both spouses have a stake in owning. If the property in question is jointly owned rather than exclusively yours, a different set of rules governs who must consent to a sale and how the proceeds are handled, and Article 112's automatic-termination rule for administration is not the provision that applies.
What this means in practice
If you sell property that your spouse has been administering on your behalf, you do not need to separately terminate their authority over that property — the sale itself does it. What you do need to attend to is actually collecting the proceeds, since the article places that obligation on whoever received them from the sale. If proceeds are being withheld or the administering spouse continues acting as though their authority persists after the sale, that conduct runs against what Article 112 itself provides.