The original sources of Islamic law, which include the constitutional law and the law of the land, are the Holy Qur'an and Sunnah. These two are the Divine sources. However, by the passing of the time the acts of the khulafa-i-rashidin and of the companions (ridwanullahi ta'ala 'alayhim ajma'in) were also included in it. Their source was still based on the Holy Qur'an and Sunnah. Further by exercising the right of qiyas, which is a favour of Allah Almighty on the Muslim 'Ummah, the law making continued and the results obtained were applied by Muslims practically in their lives and thus confirmed them, like was Consensus ('Ijmaمَاع) is one of the significant basis of Islamic Law.