Authors:

The salat can be made up for, but there is no making up for false show or outward worship without presence.

"Me and Rumi: The Autobiography of Shams-I Tabrizi". Book by Shams Tabrizi, translated by William C. Chittick, 2004.
The salat can be made up for, but there is no making up for false show or outward worship without presence.