Hazrat Saeed bin Al-Musayyib, Hazrat Mashar, and Ibrahim state that when someone does zihar with a woman and has not yet had intercourse with her, if he says, "If I come to you," there is no fixed limit or time in this; when he pays the expiation, he may go to her.

13023 - From Abu Ma’shar, from Ibrahim, they said: (If) (1) he makes zihar from her (ziharan) (2) and has not consummated (with her) (3):“If I approach you,”then there is no hadd in that and no set time; if he expiates, he may approach her.