Fast during holy months; Seek guidance from Prophet Muhammad when unsure about religious practices; Strive for forgiveness from Allah.

This hadith was narrated by Ali ibn Abi Talib, who reported that a man came to Prophet Muhammad and asked him which month he should fast after Ramadan. The Prophet advised him to fast al-Muharram, as it is the month of Allah and on one day in this month, Allah forgives people. This hadith teaches us that fasting during the holy months is an important part of our faith and that we should strive to do so in order to gain forgiveness from Allah. Additionally, it reminds us that we should always seek guidance from our beloved Prophet Muhammad whenever we are unsure about something related to our faith or practice.