"Upon it are nineteen." When this verse was revealed, Abu Jahl said: "O assembly of Quraysh! I see Muhammad is frightening you with the keepers of the Fire, and he claims they are nineteen. Are every one hundred of you unable to overpower one of them so that you may escape it?" Then Abu al-Aswad al-Jumahi said: "I will suffice you against seventeen of them; ten on my back and seven on my chest. You suffice me against the other two." Then Allah revealed: [End of the interpretation of Surah al-Muddaththir from verse 31-48].