Al-Mu'in fi al-Wa'z wa al-Irshad (المعين في الوعظ والإرشاد), authored by Hasna' Islah al-Asbahi
The physical book is often available through specialized Islamic bookstores like Safinatul Najat . thmyl ktab almyn fy alwz walarshad pdf
: Official publications related to "Preaching and Guidance" are often available on the Ministry of Islamic Affairs (Saudi Arabia) digital library. thmyl ktab almyn fy alwz walarshad pdf
Which translates to: "Download the book 'Security in Weighing and Guidance' PDF" thmyl ktab almyn fy alwz walarshad pdf