He describes voices as subdued in His words:

“On that Day they will follow the caller without deviation. Voices will be hushed before the Most Merciful, and you will hear nothing but a whisper.” [Tā Hā 108]

Anas narrated that the Prophet (may Allah bless him and grant him peace) said, “What is the matter with people who raise their eyes toward the sky during their prayers?” He spoke so sternly about this that he said, “They must stop doing that, or their sight will be snatched away.” Narrated by al-Bukhārī and most of the compilers of the Sunan collections.

Abū Hurayra narrated that the Prophet (may Allah bless him and grant him peace) said, “Those who raise their eyes toward the sky during prayer must stop, or their sight will be snatched away.” Narrated by Muslim and others.