Answer
Respected Brother-in-Islam
Assalaamu Alaykum Wa Rahmatullaahi Wa Barakaatuhu
The purpose of fasting a day before or after the 10th Muharram is to avoid
imitating the Jews who fast only on the 10th of Muharram. If one is unable
to keep the second fast due to circumstances, he will be excused.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai
FATWA DEPT.