The Book of Islamic Law is the Holy Quran, the Quran is a heavenly and universal book and is not dedicated to a specific time. As Islam is the last religion which ends all other divine religions and the Prophet of Islam (PBUH) is seal of all divine prophets, the Holy Quran is also the last divine book which is available to all human kind and Divine Science and Wisdom necessarily make this divine religion to be practical and effective for all mankind permanently. It is worth noting that the origin of changes in decision making is the limitation in science and ethics and if consider Allah Almighty someone who has no animosity toward us, we must easily understand the fact that the Holy Quran is not a version that may occasionally be used and sometimes not.
source : erfan.ir
