On the Departure of Ar-Ridha عليه السلام from Neishaboor Towards Toos and Marv

39-2 Abu Nasr Ahmad ibn Al-Husayn ibn Ahmad ibn Obayd al-Dhabbi narrated that he had heard that Abul Husayn ibn Ahmad quote on the authority of his grandfather, on the authority of his father, “When Ali ibn Musa Ar-Ridha’ عليه السلام entered Neishaboor at the time of Al-Ma’mun, I was at his service and took care of his needs as long as he was there until he departed towards Sarakhs. I accompanied him. I accompanied him when he wanted to leave Sarakhs to go to Marv. But as soon as we passed through one way-station, he brought out his head from his carriage andsaid, “O Aba Abdullah! Return. May you be successful. You have performed what is incumbent upon you. You need not accompany me anymore.” I said, “I swear by al-Mustafa (the Prophet), al-Mortadha (Imam Ali) and az-Zahra (Fatima). Please tell me one tradition to heal me so that I may return.” He said, “Are you asking me for traditions? I have left the neighborhood of my grandfather - the Prophet of God عليه السلام - not knowing what will happen to my affairs.” I said, “I swear by al-Mustafa, al-Mortadha and az-Zahra. Please tell me one tradition to heal me so that I may return.” Then he said, “My father عليه السلام narrated that his father عليه السلام quoted on the authority of his father عليه السلام that he had heard his forefathers عليه السلام say that they heard their forefathers عليه السلام say that they heard Ali ibn Abi Talib عليه السلام say that he had heard the Prophet صلى الله عليه وعلى آله وسلم say that God - the Exalted the Magnificent - said, There is no god but God is My Name. Whoever says it sincerely and whole-heartedly will enter My Stronghold. Whoever enters My Stronghold is secure from My punishment.”The author of this book (a.s.heikh Sadooq) - may God forgive him - said, “Sincerity here means that these words should protect him from saying what God the Exalted the Honorable has forbidden.