(Bamidbar 30:14) "And if her husband be silent, silent to her from day to day": This is the silence of taunting. You say this, but perhaps it is the silence of confirmation (of the vow)? (This is not so, for Ibid. 12) "and he was silent to her" already speaks of the silence of confirmation. How, then, is "and he be silent, silent" to be understood? As referring to the silence of taunting. "from day to day": I might think, from time to time (i.e., for a twenty-four hour period); it is, therefore, written "which are upon her. He has confirmed them for he was silent to her on the day of his hearing" (i.e., until the night). R. Shimon b. Yochai says: "from time to time (i.e., a twenty-four hour period)," it being written "from day to day."
Account of Rabbi Shimon
Sifrei Bamidbar 156:1