´Narrated Sulaiman bin Harb:` "Hammad bin Salamah narrated to us, from Thabit, from Anas, that the Prophet (ﷺ) recited this Ayah: So when his Lord appeared to the mountain, He made it collapse to dust (7:143) - Hammad said: "Like this." Sulaiman held his thumb over the tip of his finger on the right hand (so that only the tip of one finger was protruding) - and he [the Prophet (ﷺ)] said: "So the mountain fainted. 'And Musa fell down unconscious.'"
´Narrated Sulaiman bin Harb:` "Hammad bin Salamah narrated to us, from Thabit, from Anas, that the Prophet (ﷺ) recited this Ayah: So when his Lord appeared to the mountain, He made it collapse to dust (7:143) - Hammad said: "Like this." Sulaiman held his thumb over the tip of his finger on the right hand (so that only the tip of one finger was protruding) - and he [the Prophet (ﷺ)] said: "So the mountain fainted. 'And Musa fell down unconscious.'"
Shaykh Dr. Abdur Rahman Freywai
Explanation: 1: When the Lord of Musa manifested His glory upon the mountain, the manifestation shattered it to pieces (al-A'raf: 143)
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 3074