Expiation has been laid down, for an act undertaken for the purpose of doing mischief (to some one) in the future, as well as for an act done whose consequence is apparently mischievous.
ऊर्ध्वं भवति संदेहादिह दृष्टार्थमेव च। अपेक्षापूर्वकरणात् प्रायश्चित्तं विधीयते॥