A book of interpretation of strange words of the Holy Quran, by Ibn al-Ha’im (753/1352 - 815/1412 ). The book is an addition to the book of interpretation of the strange words of the Qur’an called «Nuzahat al-Qulub» by Abu Bakr al-Sijistani. Ibn al-Ha’im collected the scattered strange words of each surah, adding some things in some places to the original to facilitate its reading and complete its benefit. He sought to make it easy and avoid lengthening it.