The word(s) "religious" appears 27 time(s) in 26 verse(s) in Quran in Mohsin Khan translation.

(21) Say (O Muhammad صلى الله عليه وسلم): "Allah Alone I worship by doing religious deeds sincerely for His sake only (and not to show off, and not to set up rivals with Him in worship.)"

(22) And when Allah Alone is mentioned, the hearts of those who believe not in the Hereafter are filled with disgust (from the Oneness of Allah توحيد الله) and when those (whom they obey or worship) besides Him [like all false deities other than Allah, - it may be a Messenger, an angel, a pious man, a jinni, or any other creature even idols, graves of religious people, saints, priests, monks and others.] are mentioned, behold, they rejoice!

(23) So, call you (O Muhammad صلى الله عليه وسلم and the believers) upon (or invoke) Allah making (your) worship pure for Him (Alone) (by worshipping none but Him and by doing religious deeds sincerely for Allah's sake only and not to show off and not to set up rivals with Him in worship), however much the disbelievers (in the Oneness of Allah) may hate (it).

(24) O you who believe (Muslims)! When the call is proclaimed for the Salat (prayer) on Friday (Jumu'ah prayer), come to the remembrance of Allah [Jumu'ah religious talk (Khutbah) and Salat (prayer)] and leave off business (and every other thing). That is better for you if you did but know!

(25) And when they see some merchandise or some amusement [beating of Tambur (drum) etc.] they disperse headlong to it, and leave you (Muhammad صلى الله عليه وسلم) standing [while delivering Jumu'ah religious talk (Khutbah)]. Say: "That which Allah has is better than any amusement or merchandise! And Allah is the Best of providers."

(26) 'There are among us some that are righteous, and some the contrary; we are groups having different ways (religious sects).