In The Name of Allah, The Most Merciful, The Bestower of Mercy.

Ibn Abee Dunya, may Allah have mercy upon him, reported with a chain of transmission going back to Rabee Bin Anas, may Allah have mercy upon him, who said:

Al-Ikhlas (Sincerity) to Allah is the distinguishing sign of the Religion and the distinguishing sign of knowledge is Khashyah”. [1] (a)

(a) Khashya: The fear of Allah founded upon knowledge of the greatness of Allah and Him being the owner of complete and perfect sovereignty and Dominion.” [Source:  The abbreviated meaning of Khashyah was taken from Shaikh Abu Talhah’s translation of “The Three Fundamental Principles”. May Allah grant him and his wife Jannatul Fir’daws Amin].

[1] Al-Ikhlas Wan-Niyyah.  page 33