It is narrated from Ibrahim (may Allah have mercy on him) that he said: "If a man gives his wife the choice and the wife remains silent until both separate, then her silence is considered consent to her husband; now she will not have the choice at any other time."
Hadith Referenceسنن سعید بن منصور / كتاب الطلاق / 2800
Hadith Takhrij«أخرجه سعيد بن منصور فى «سننه» ترقيم الدرالسلفية برقم:، 1622، وابن أبى شيبة فى «مصنفه» برقم: 18419، 18436»