I understand the proper Urdu pronunciation is saahib. However, saahab (not saab) is very commonly used by a large number of native speakers, in spoken language. In writing, it is hard to tell because both saahib and saahab are written the same way in Urdu script. I also noticed a number of instances of saahab on this forum (see here, here, and here, there are many more). Platts describes it as a corruption of saahib. Not sure if that legitimates it or not. My question is, is pronouncing/transcribing saahab considered wrong, or acceptable?