From Sahih Muslim (Hadith 1929):
Uqba b. 'Amir said: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
Reference: Muslim 1929