“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.’”
Sunan Ibn Majah Book 37, Hadith 72