An English translation of Tas-heel al-Adab Fi Lisan al-'Arab popularly known as Arbi Ka Mu'allim. A well-known Arabic Grammar textbook in the syllabus of many Islamic seminaries for the past 60 years. A student doing self-study can complete each part in about six weeks, or the whole book in about six months. In Arabic seminaries and Darul Ulums, where only Arabic is taught, all four parts of this book can easily be taught in one year. Nevertheless, this book is such that every textbook committee and those in charge of the syllabi in the madrashs should include it in their syllabus in order to remove the difficulties of the students. They will be rewarded by Allah and thanked by the people.