question #3 Sahih Muslim 831, Book 6, Hadith 357 : How does the position of the sun influence the permissibility of performing certain religious acts in Islam?

There were three times at which Allah’s Messenger (ﷺ) forbade us to pray, or bury our dead: When the sun begins to rise till it is fully up, when the sun is at its height at midday till it passes over the meridian, and when the sun draws near to setting till it sets.