Sahih al-Bukhari Book 10, Hadith 32
My father said, "While we were praying with the Prophet (ﷺ) he heard the noise of some people. After the
prayer he said, 'What is the matter?' They replied 'We were hurrying for the prayer.' He said, 'Do not
make haste for the prayer, and whenever you come for the prayer, you should come with calmness,
and pray whatever you get (with the people) and complete the rest which you have missed."
My father said, "I saw Bilal turning his face from side to side while pronouncing the Adhan for the prayer."
The Prophet (ﷺ) said, "When you hear the Iqama, proceed to offer the prayer with calmness and solemnity and do not make haste. And pray whatever you are able to pray and complete whatever you have missed.