Pictures help, but generally it's best to let stems callus over and then plant them

Alex, it is unclear exactly what you have. What kind of "wound" are you referencing? If you have a leaf that is broken or cut off for propagation purposes, or if you have a Sans that was CUT OFF at the rhizome that grows underground, also for propagation purposes -- those are two different things.

When someone divides a Sans by cutting two or more leaves off at the rhizome with the intention of planting them separately, yes -- let that "wound" callous a little before you plant it separately in soil. Usually two or three days will do -- at least for me (I'm in Florida where it's humid). With leaf cuttings, I might leave them along for a day, then stick the CUT ENDS into a propagation material.

If you can post a photo, that will help people to give you the best advice. You CAN root a Sansevieria in water. People do it all the time. I personally don't, but other people have posted about doing so.