All prophets warned man against sin.
All the prophets spoke mainly against the sin and idol worship done by man.
Sin against reason is a tent of believers in philosophia doctrine and has nothing to do with Sin as defined in Christian doctrine (sin against our Fathers law as given to Moses and proclaimed by his prophets as well as Christ and his apostles). Sin against reason is based in the use of dialectics by believers in philosophia doctrine, usually Stoic Philosophia doctrine. Believers base their belief of truth to be rooted in the logic and reason of dialectics.
He warned them that the corruption in their lives was due to sin.
Prophets
All the Prophets are direct disciples of Allah Almighty. They are more than visionary. Anyhow, humans may fall a prey to forgetfulness for a little while. However, contrary to common human beings, the Prophets are warned immediately against the slightest of their forgetfulness.
Winston Churchill warned against appeasement while Neville Chamberlain was applauded for his appeared diplomacy.
The prophets were sent by God to guide the kings and the people. They exhorted, taught and prophesied; they warned as well as comforted the people.
As the prophets explained, the exile happened after God warned the people against idolatry (and other sins), and they didn't keep His words sufficiently. see Leviticus ch.26.
A:Jesus is reported to have warned against false prophets, which many Christians consider a warning about Islam. Muslims do not regard Muhammad as a false prophet and therefore say that the warning does not apply to Islam.
The main function of the prophets was to exhort and warn: to keep the people on the path of righteousness, or to return them to that path. They warned against idolatry and other sins, and predicted the Destruction of the Holy Temple (among other things).
Washington after he left office Warned about permanent alliances in his farewell address
Washington warned against permanent foreign alliances and the formation of political factions in his Farewell Address.