Follow instructions carefully; Be mindful towards religious obligations; Be punctual with prayers etc.; Have your pre-dawn meal before starting your fast in Ramadan; Listen attentively when someone calls out Adhan etc..

This hadith is about how Muslims should observe their fast during Ramadan. It tells us that Bilal, a companion of Prophet Muhammad, would call out Adhan at the end of night to inform people that it was time for them to have their pre-dawn meal or Suhoor before starting their fast. After having Suhoor, Muslims should wait until they hear another call from Ibn Umm Maktum which marks the end of Suhoor and start of fasting. This hadith teaches us that we must be mindful about our religious obligations such as fasting during Ramadan and not miss out on any important details related to it.