Sura al-Raʿd 13:10

سَوَآءٌ مِّنكُم مَّنْ أَسَرَّ ٱلْقَوْلَ وَمَن جَهَرَ بِهِۦ وَمَنْ هُوَ مُسْتَخْفٍۭ بِٱلَّيْلِ وَسَارِبٌۢ بِٱلنَّهَارِ

sawāʾun minkum man asarra l-qawla wa-man jahara bihi wa-man huwa mustakhfin bil-layli wa-sāribun bil-nahāri

It is the same (to Him) whether any of you conceal his speech or declare it openly; whether he lie hid by night or walk forth freely by day.

Sura al-Isrāʾ 17:110

قُلِ ٱدْعُوا۟ ٱللَّـهَ أَوِ ٱدْعُوا۟ ٱلرَّحْمَٰنَ أَيًّا مَّا تَدْعُوا۟ فَلَهُ ٱلْأَسْمَآءُ ٱلْحُسْنَىٰ وَلَا تَجْهَرْ بِصَلَاتِكَ وَلَا تُخَافِتْ بِهَا وَٱبْتَغِ بَيْنَ ذَٰلِكَ سَبِيلًا

quli idʿū allāha awi idʿū l-raḥmāna ayyan mā tadʿū falahu l-asmāʾu l-ḥusnā wa-lā tajhar bi-ṣalātika wa-lā tukhāfit bihā wa-ibtaghi bayna dhālika sabīlan

Say: "Call upon Allah, or call upon Rahman: by whatever name ye call upon Him, (it is well): for to Him belong the Most Beautiful Names. Neither speak thy Prayer aloud, nor speak it in a low tone, but seek a middle course between."

Sura Ṭā Hā 20:7

وَإِن تَجْهَرْ بِٱلْقَوْلِ فَإِنَّهُۥ يَعْلَمُ ٱلسِّرَّ وَأَخْفَى

wa-in tajhar bil-qawli fa-innahu yaʿlamu l-sirra wa-akhfa

If thou pronounce the word aloud, (it is no matter): for verily He knoweth what is secret and what is yet more hidden.