It was narrated that Abu Ayyub said:“A man came to the Prophet (ﷺ) and said: ‘O Messenger of Allah, teach me but make it concise.’ He said: ‘When you stand to pray, pray like a man bidding farewell. Do not say anything for which you will have to apologize. And give up hope for what other people have.’”

English translation · Sunan Ibn Majah