This is a massage from `Abdul `Aziz Bin `Abdullah Ibn Baz to the honorable brother. May Allah grant him success!
May Allah's Peace, Mercy and Blessings be upon you! I have received your message and read it. I learned that you received the books sent to you by the General Presidency of Scholarly Research and Ifta' and that you also requested clarification on some issues of concern to callers to Allah.
I inform you that one who calls to Allah should be knowledgeable on the subjects he calls to, comprehend texts of the Qur'an and Sunnah, as well as the statements of scholars on the subjects he deals with. For example, if he will discuss Tawhid (Monotheism) and avoiding Shirk (ascribing partners to Allah in worship), he should study Ayahs (Qur'anic Verses) and Hadiths which explain Tawhid and views held by scholars of Tafsir (exegesis of the meanings of the Qur'an) on these Ayahs, such as Ibn Kathir, Ibn Jarir and AlBaghawy. This will acquaint one regarding the essence of Tawhid and Shirk.
Among the most useful books on this topic are the books of SheikhulIslam Ibn Taymiyyah, Ibn AlQayyim and Sheikh Muhammad Ibn `AbdulWahhab and other scholars who followed their footsteps. Among the useful books in this respect are Zad AlMa`ad by by Ibn AlQayyim and AlQa`idah AlJalilah Fi AlTawassul WalWasilah (The Noble Principle of Tawassul and Wasilah by SheikhulIslam Ibn Taymiyyah, Al`Aqidah AlWasitiyyah (The Creed of the People of Wasit) by him also, the Book of Tawhid by Sheikh Muhammad Ibn `AbdulWahhab, and the book of FathulMajid by his grandson Sheikh `AbdulRahman Ibn Hasan .
If the caller will discuss matters of Fiqh such as Salah (Prayer), Zakah (obligatory charity), and other jurisprudential issues, he should review the relevant texts in this respect and explain to laypeople the rulings he knows briefly and gently in good manner and precise words. This will make it easy for the audience to understand what he delivers to them.
As for translation, I recommend seekers of knowledge to refer to those noted for having sound creed and good knowledge who have command of the foreign language to
he wishes to translated. I will send you some Islamic books in the English and French languages, as well as a copy of my book Majmu` AlFatawa WalMaqalat (Comprehensive Compilation of Fatawa and Articles). I ask Allah (may He be Praised) to guide us all to the right way and grant us success so that we may accomplish what He loves and pleases Him. He is AllHearer and Ever Near. May Allah's Peace, Mercy, and Blessings be upon you!