Does Doing A Grey Area Matter Incur Sin?
“only when a matter has both evidence to suggest it is Halal, and also evidence to suggest it is Haram.” Halal and haram are mutually exclusive, they cannot overlap. You are presenting a hypothetical premise which is false ab initio, because the Book of God, being the source of all evidence, is coherent and it doesn’t contain any such contradictory evidence, citing something as halal and haram at the same time. “secondly, if there’s a matter about which there’s no evidence to prove it is Haram and no evidence to prove that it is Halal.” No such thing exists at all which is neither halal nor haram. It is an amr e mahal (impossibility). If something is not specified or commanded as forbidden or haram, it is halal or permissible by default. There is no separate enumerated list of halals.. such list exists only for harams, which are clearly pronounced in Quran. The principle is contained in the verse 6:119 : قد فصل لکم ما حرم علیکم Also see 6:150.