If you hit a ball into the deep stuff are you obliged to spend 5 minutes looking for it, or can you declare it lost and just play your provisional ?
If you play a provisional and then you or somebody else finds your ball, you have to play the first ball and are not entitled to play the prov.
If you play a provisional and then you or somebody else finds your ball, you have to play the first ball and are not entitled to play the prov.
Unless.........