Surah Al-Baqarah — Ayah 227 (2:227)
وَإِنۡ عَزَمُواْ ٱلطَّلَٰقَ فَإِنَّ ٱللَّهَ سَمِيعٌ عَلِيمٞ ٢٢٧
English translation (Saheeh International)
And if they decide on divorce - then indeed, Allāh is Hearing and Knowing.
Brief commentary
If such a man is determined to continue his oath and so passes the four months period, intending by that a divorce, then Allah hears their statements, including the divorce, and He knows their states and intentions and will reward them for that.