No, it is impossible for a few reasons.
First of all, Teide permits are strictly prohibited to sell or buy.
Second, you are on the list of our group permit and it is different from the individual Teide permit. That means you are tied to the group and must hike up and down with the group and our official guide. Book Hiking Teide volcano with permit included Tenerife now just with Booking Deposit on TripsPoint