[Does Revocation Apply to One Who Divorced After a Valid Seclusion Without Intercourse?]

Answer: If the spouses agree, after the valid seclusion, that no intercourse occurred between them, then no waiting period (ʿiddah) is due upon the wife; and revocation is one of the concomitants of the waiting period. This is due to His—Most High—saying: “Then if you divorce them before you have touched them, you have no waiting period to count for them.” [Al-Ahzab:49].
Source : Min Thimār al-ʿIlm wa al-Ḥikmah vol.1