I want to ask the ulema the above question. The reason being is that I read in Beheshti Zewar that taking off the hair on the lower lip (baby beard) is a bida'. Now I am seeing many religious people including ulema are trimming the sideburns. I am assuming these people are considering it permissible to trim the sideburns and even if they are not, their example (because they are religious authority or ulema) are enough to set a "trend". If this impermissible action is starting to be considered permissible then does it not become a bida' - just as it says that taking off the baby beard is a bida'.