From him, from Muhammad ibn al-Husayn from Mu‘awiyah ibn Hakim from Sulayman ibn Muhammad al-Khath‘ami from Ishaq ibn ‘Ammar, who said: I said to Abu Abdillah عليه السلام, peace be upon him: “At what distance is the shortening (of prayer)?” Imam عليه السلام said: “At one ‘barid’. Woe to them! (meaning the opponents) It is as if they did not perform Hajj with the Messenger of Allah سبحانه وتعالى, may Allah سبحانه وتعالى bless him and his family, and shorten (their prayers).”