The Quran is the foundation, but authenticated Hadith collections are crucial for interpretation, making them the most authoritative after the Quran.
Sharia primarily governs ethics, worship, finance, marriage, and criminal law, but purely secular civil codes may not fall under it.
Hudud are prescribed punishments for crimes like theft or adultery, considered limits set by God.
Ijma is the agreement of scholars on legal matters, which helps interpret and apply Sharia in new contexts.
Core principles are consistent, but interpretations vary depending on local culture, jurisprudence schools, and historical context.