That depends on the implementation.
For node-sass and ruby-sass try this:
sass --sourcemap=none --watch style.scss:style.css
If you're using dart-sass the usage is --no-source-map
:
sass --no-source-map --watch style.scss:style.css
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…