The Knowledge of I rab al-Quran and its Role in the Holy Quran Translation (Emphasizing on the Shah Wali Allah Dehlawi's Translation)

I’rab al-Quran is an important knowledge formed to help understand and interpret the Holy Quran. There are many valuable I’rab al-Quran books written by Quranic scholars. However, some of the Quran translators did not pay enough attention to this knowledge and did not regard it as a necessary means of Quran translation. In this article, after definition of the knowledge, I’rab al-Quran, and introducing some of its famous scholars works, we have showed its important role in Quran interpretation. Among translators of Quran, Shah Wali Allah Dehlawi has paid complete attention to I’rab al-Quran in his translation; therefore, in this respect, his translation is acceptable, although, in some few cases, because of his poor attention to some the aforementioned knowledge instructions, his translation is not accurate.