The sunnah is an inspiration from Allah (SWT), but relayed to us through the words and actions of the Prophet (saas), and his concurrence with others' actions. The sunnah confirmed the rulings of the Qur'an; detailed some of the concepts, laws and practical matters which are briefly stated in the Qur'an (e.g. definition of Islam, Iman, and Ihsan, details of salah, types of usury); and gave some rulings regarding matters not explicitly stated in the Qur'an (e.g. wearing silk clothes for men).