Ustad my masjid is tablighi, basically maturidi aqeedah, the youth has some connection to them, I believe I can explain to the youth easily why the tablighis are wrong and they might accept it. is it an obligation upon me to tell them about this because it might come under me concealing knowledge ?

Ustadh AbdulAziz al-Haqqan

U should yes as u said they might listen, but we do it with wisdom and without causing more evil and problems etc.