Hasan al-Basri (may Allah have mercy on him) said: "If a man says to his wife: 'By Allah, I will not come to you until you come to me,' and the woman leaves in anger, then after four months, there will be no (ruling of) ila (oath of abstention)."
Hadith Referenceسنن سعید بن منصور / كتاب الطلاق / 3097