[1] Zafar Ahmad Usmani, the author, dedicated over twenty years to crafting the book, which includes more than 6,100 hadiths and their sources, along with evaluations of their chain of transmission and text.

Organized according to the chapters of Islamic jurisprudence, the book covers a broad range of topics, from purification and prayer to ethics and spirituality.

The bottom of the page contains critiques of the narrations and their legal aspects, along with quotations from the reliable books of the Hanafi school where there are differences of opinion.

The primary purpose of writing the book was to defend the Hanafi school of thought against allegations made by some scholars in India in the mid-20th century.

[5] The methodology of the book involves citing authentic Hadiths and statements of the Companions that support the views of the Hanafi school of thought, with their sources mentioned at the top of the page.

[10] Abd al-Fattah Abu Ghudda described the book as an immensely beneficial encyclopedic work, particularly relevant in response to the emergence of the Ahl al-Hadith movement in India.

Abdur Rouf completed his PhD thesis entitled "Efforts and Methods of Al-Imam Zafar Ahmad Al-tahanawi in the Sunnah Al-Nabawiyyah" in Arabic at the University of Technology Malaysia.

[12] Similarly, in 2020, Ayşe Coşar completed her dissertation entitled "Fiqh Analysis of the Marriage Section of Tahanawi's I'la al-Sunan" in Turkish at Sivas Cumhuriyet University in Turkey.