Observe Saum on sighting crescent and terminate it on sighting new moon .

This hadith is about observing fasts during the month of Ramadan. It teaches us that we should start our fast when we see the crescent moon and end it when we see it again, but if there are clouds in the sky, then we should complete thirty days for that month. This hadith also emphasizes on following Islamic teachings and being mindful of our religious obligations even if there are obstacles in our way. It encourages us to stay focused on fulfilling our duties as Muslims despite any difficulties or challenges that may come up along the way.