3. Ahmad ibn Muhammad from has narrated from al-‘Abbas ibn Ma‘ruf from Safwan ibn Yahya from ibn Sinan from ‘Ammar ibn Marwan from Sama‘ah ibn Mehran, from abu ‘Abdillah (a.s.) regarding his saying
‘A fasting person has the choice until Zawal (declining of the sun toward the west at noontime)’. He said: ‘It is about the obligatory (fast). In the case of the optional (fast), one has the choice to stop fasting any time up to sunset.’”