\n Muhammad Bin Yahya...

\n Muhammad Bin Yahya, from Ahmad Bin Muhammad, from Al Sayyari who said, \n \u2018Muhammad Bin Al-Faraj wrote to (Imam) Al-Askari -asws asking him -asws about what is reported from the accounting regarding the Fasting, from your -asws forefathers -asws regarding the counting of five days (Monday-Friday) between the first year which is past, and the second year which is coming.

So he -asws wrote: \u2018Correct, but count during every four years, five, and in the fifth year, six, regarding what is between the former and the new (year), and what is besides that, so it is five, five\u2019. \n Al-Sayyari said, \u2018And this is from the direction of the leap year\u2019 He (the narrator) said, \u2018And our companions have calculated it, so they found it to be correct\u2019.

\n He (the narrator) said, \u2018And Muhammad Bin Al-Faraj wrote to him in the year two hundred and thirty eight (238), \u2018This calculation is not possible for every human being that he acts upon it. But rather, this is for the one who understands the years, and the one who know when the leap year was, then it would be correct for him, the crescent of the Month of Ramazan of the first night.

So when the crescent is correct for its night, and he understands the years, so that would be correct for him, if Allah -azwj so Desires it\u2019.