Lit. “Sincerity.” (1) A theological term, implying that a Muslim performs his religious acts in the sight of God alone, and not to be seen of men. (2) Al-Iklas, the title of the CXIIth Surah of the Qur’an. A chapter which occurs in the daily prayer, and reads thus: –
“Say, ‘He is God alone!
God is Eternal!
He begets not, and is not begotten!
Nor is there anyone like unto him!'”
Professor Palmer says this chapter is generally known as al-Ikhlas, “clearing oneself,” i.e. of belief in any but one God.
Based on Hughes, Dictionary of Islam