Some poor people came to the Prophet (ﷺ) and said, "The wealthy people will get higher grades and will
have permanent enjoyment and they pray like us and fast as we do. They have more money by which
they perform the Hajj, and `Umra; fight and struggle in Allah's Cause and give in charity." The
Prophet said, "Shall I not tell you a thing upon which if you acted you would catch up with those who
have surpassed you? Nobody would overtake you and you would be better than the people amongst
whom you live except those who would do the same. Say "Subhana l-lah", "Al hamdu li l-lah" and
"Allahu Akbar" thirty three times each after every (compulsory) prayer." We differed and some of us
said that we should say, "Subhan-al-lah" thirty three times and "Al hamdu li l-lah" thirty three times
and "Allahu Akbar" thirty four times. I went to the Prophet (ﷺ) who said, "Say, "Subhan-al-lah" and "Al
hamdu li l-lah" and "Allahu Akbar" all together , thirty three times."
Sahih al-Bukhari Book 10, Hadith 235