Observe fast when you see it(the new moon). Break your fast when you see it again at the end of Ramadan. Count thirty days if you can't observe or break your fast due to cloudy skies .

This hadith explains the importance of fasting during Ramadan, which is a holy month in Islam. It also explains how to calculate when to start and end fasting if one cannot see the new moon due to cloudy skies. Muslims are encouraged to observe fast when they see the new moon, and break their fast when they see it again at the end of Ramadan. If one cannot see it due to cloudy skies, then they should count thirty days instead. This hadith teaches us that we should be mindful of our religious obligations even if we face difficulties in fulfilling them.