I heard that Istibra where one coughs or gets up and walks a little or squeezes the head of the penis to ensure all drops of urine have exited the body is an innovation. Instead he should simply wait a moment or two, not rushing, then wash the head with water and get up. Some light on this matter would be appreciated please.
Whichever method makes you most satisfied that urine will not come out after you have finished. The main reason is in order to keep your clothing clean.