How should one deal with books that contain unverified hadiths, or jurisprudential rulings for which the author has not cited their evidence? Is everything in "Fiqh al-Sunnah" and "Minhaj al-Muslim" considered to be the most preferable opinion? Is every hadith that states "narrated by al-Tirmidhi or Ahmad" considered authentic? What are the recommended books for a student to progressively study in the pursuit of knowledge?

Knowing the grade of a Hadith (definition) is important for using it as evidence in establishing rulings and for preferring one opinion over another when there is a conflict.

Among the books that focused on extracting Hadith related to Fiqh and clarifying their grade are: Nasb ar-Rayah, at-Talkhis al-Habir, Bulugh al-Maram, Nayl al-Awtar, Irwa al-Ghalil, Ghawth al-Makdood, and Takhrij Ahadith Mishkat al-Masabih.

One can benefit from Shaykh Al-Albani's takhrij (Hadith authentication and commentary) of the four Sunan books: Sunan Abu Dawud, at-Tirmidhi, an-Nasa'i, and Ibn Majah.

The book Bidayat al-Mujtahid was served by Ahmad Siddiq al-Ghumari in his book: Al-Hidayah fi Takhrij Ahadith al-Bidayah.

To determine the preferred view in Fiqh issues, evidence is gathered, compared, and rules of preference are applied, along with understanding the general and specific, the absolute and restricted, the abrogating and abrogated, and the explicit and implicit meanings.

Among the books that discuss principles in Fiqh and Hadith are: Fiqh principles books such as Al-Ashbah wan-Nazair by As-Suyuti, Qawa'id Ibn Rajab, and Qawa'id az-Zarkashi. Also, Hadith terminology books such as Muqaddimat Ibn as-Salah (definition), Tadrib ar-Rawi by As-Suyuti, Alfiyyat al-Hadith by As-Suyuti, and Alfiyyat al-Hadith by Al-Iraqi.

As for the books that a beginner should prioritize, it varies depending on what one intends to achieve.