Shah Abrar ul-Haq (may Allah have mercy on him) said,

‘Some individuals follow all the rules and regulations of reading Quran in prayers (salah) that are read aloud (jahari), whereas, in prayers that are read silently they do not follow any of the regulations.

Why?

Are these regulations only for the prayers read aloud?

If the following of these regulations is due to the respect and right of the Holy Quran then in all situation they must be followed.

Hayat e Abrar ra, page 255