The Cleaving in Sunder (Arabic: الانفطار‎, al-infitar, aka “The Cleaving”, “Bursting Apart”) is the 82nd sura of the Qur'an with 19 ayat. The chapter is named 'Al-Infitar’ because of the occurrence of the word 'unfatarat', in the first verse of this chapter. Infitar means 'split asunder'. This word, ‘Unfatarat’ is used in this chapter in order to describe the splitting the sky on the day of Judgment. This chapter (Al-Infitar), along with Chapter At-Takwir and Al-Inshiqaq provide exhaustive description about ‘Day of Judgment’.

Source of translation and meaning of this sura: islamicfinder.org
audio source: www.mp3quran.net