And from him, from Ali ibn Ibrahim, from his father, from Ibn Mahbub, from Khalid ibn Jarir, from Abu al-Rabi al-Shami, from Abu Abdillah عليه السلام, peace be upon him: Imam عليه السلام was asked about ‘a man who said, ‘For Allah سبحانه وتعالى upon me is that I fast for a time (hinan),’ and that was in my uncertainty. So Abu Abdillah عليه السلام, peace be upon him, said: “My father عليه السلام, peace be upon him, was approached regarding the like of that, so He عليه السلام said: ‘Fast six months, for Allah سبحانه وتعالى, the Exalted, says: ‘(always) yielding its fruit in every season by the Will of its Lord عز وجل.’ (Surah Ibrahim 14:25) meaning six months.”