The study of the rules and laws of Islam (called fiqh in Arabic) is about categorizing and judging human acts according to the teachings of Allah and His messenger. Acts include what we do with our bodies and in our hearts.
The school of Islamic Fiqh founded by Abu Hanifah is one of the four that enjoyed massive and general scholarly acceptance since the salaf-generation until today (please see: why follow a school?). Its acceptance is due to the completeness, precision and strong proofs by which it organized and answered the questions of this science.
In fact, the acceptability of following the school of Abu Hanifah is clearly indicated in the Hadith authenticated by Al-Dhahabi, Al-Suyuutiy and Al-Haakim, which means "Verily You shall open Constantinople. Its leader is good and so is that army." Throughout history muslim rulers strove to take this city due to this hadith. They wanted to be the leader that the Prophet blessed. It is well known that Muhammad al-Faatih and his army, who conquered this city, were Hanafis.
Please find to your left a series of articles related to fiqh and Islam. Note
that you can get a nice printout of the articles by highlighting just
the article with its headings and pasting it into a wordprocessor. Make
as many copies as you like. Copyright is an idea of the non-Muslims that has no footing in Islamic law according to any Sunni school.