ٱلۡيَوۡمَ نَخۡتِمُ عَلَىٰٓ أَفۡوَٰهِهِمۡ وَتُكَلِّمُنَآ أَيۡدِيهِمۡ وَتَشۡهَدُ أَرۡجُلُهُم بِمَا كَانُواْ يَكۡسِبُونَ ٦٥
That Day, We will seal over their mouths, and their hands will speak to Us, and their feet will testify about what they used to earn.
Translation: Saheeh International (English)
Each word's meaning and sound
Today, I will seal their mouths and they will become mute not able to deny the disbelief and sins they committed. Their hands will speak to us about what they did in the world. Their feet will testify about the sins they perpetrated and walked towards.
Al-Mukhtasar in interpreting the Noble Quran