Ahmad ibn Muhammad ibn Isa, from al-Abbas ibn Maruf, from Safwan ibn Yahya, from Ibn Sinan, from Uthman ibn Marwan, from Samaah ibn Mihran, from Abu Abdillah عليه السلام, peace be upon him: (Imam عليه السلام was asked) regarding his statement, ‘The fasting person has the choice until the decline of the sun.’ Imam عليه السلام said: “That is regarding the obligatory fast. As for the voluntary fast, he may break the fast at whichever hour he wishes until the setting of the sun.”