If the address is in your listing (which is normally the case, because it is obliged when setting up the listing), then the address should be in his itinerary also.
@Anthony783 he probably doesn't know where to look although it's pretty straightforward. You can text it to him anyway, it's not a big deal. I just hope he understands the concept of Airbnb and fully read what he booked 🙂
@Anthony783 If you have your settings set this way, the guest doesn't get the address during the 48-hour grace period unless the reseration is within 14 days of the booking date. That is my preference, but most of my reservvations are made at least 6 weeks in advance; often much farther out.