and he traced its chain of transmission through Ibn Abī Hātim to Muqātil ibn Hayyān, who said: “I visited ‘Umar ibn ‘Abd al-‘Azīz, and he asked, ‘Where are you from?’ I replied, ‘I am from Balkh.’ He asked, ‘How far are you from the river?’ I replied, ‘So many parasangs.’ He asked, ‘Has a man called Jahm appeared beyond the river who is bringing ruin upon