«لَا أُكَلِّمُ فُلَانًا إِلَى شَهْرٍ»
“I will not speak to so-and-so for a month.”
Here ila attaches the oath to a bounded period. The month is not incidental background information; it determines the time during which the abstention applies.
Speaking before the period ends must be distinguished from speaking afterward. The decision turns on how the temporal boundary and the oath's wording delimit the promised abstention.