Answered by Shaykh Faraz Rabbani
I happened to go through your reply regarding foolish letters calling for their copies to be distributed, failing which something drastic is promised to happen to the “non-believer”. Though your reply suggests that such letters are baseless but you have not used strong wordings – strong enough to show your own faith in the reply that you have proffered. Please keep in mind that while telling something that you know is right, you should not care for the world’s opinion. Please do not leave any doubt in the minds of your listeners and readers as to the validity of your belief – tell them that ALL of (and not “most” of – as you say) such letters are not only baseless but are averse to true faith.
Walaikum assalam wa rahmatullah,
Our teachers have taught that one should exercise care in one’s statements.
Saying ‘all’ requires that one have (ideally) knowledge of each particular instance or (at least) a large enough body of evidence to be reasonably sure that it is likely to apply to each individual case. Even a couple of exceptions would render one’s statement inaccurate or wrong.