عَنْ مُحَمَّدِ بْنِ أَبِي عَائِشَةَ عَنْ أَبِي هُرَيْرَةَ أَنَّهُ حَدَّثَهُمْ أَنَّ أَبَا ذَرٍّ رَضِيَ اللَّهُ عَنْهُ قَالَ: يَا رَسُولَ اللَّهِ! ذَهَبَ أَصْحَابُ الدُّثُورِ بِالْأُجُورِ يُصَلُّونَ كَمَا نُصَلِّي وَيَصُومُونَ كَمَا نَصُومُ وَلَهُمْ فُضُولُ أَمْوَالِهِمْ يَتَصَدَّقُونَ بِهَا، وَلَيْسَ لَنَا مَا نَتَصَدَّقُ بِهِ، فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((أَفَلَا أَدُلُّكَ عَلَى كَلِمَاتٍ إِذَا عَمِلْتَ بِهِنَّ أَدْرَكْتَ مَنْ سَبَقَكَ وَلَا يَلْحَقُكَ إِلَّا مَنْ أَخَذَ بِمِثْلِ عَمَلِكَ؟)) قُلْتُ: بَلَى يَا رَسُولَ اللَّهِ! قَالَ: ((تُكَبِّرُ دُبُرَ كُلِّ صَلَاةٍ ثَلَاثًا وَثَلَاثِينَ، وَتُسَبِّحُ ثَلَاثًا وَثَلَاثِينَ، وَتَحْمَدُ ثَلَاثًا وَثَلَاثِينَ، وَتَخْتِمُهَا بِلَا إِلَهَ إِلَّا اللَّهُ وَحْدَهُ لَا شَرِيكَ لَهُ، لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ وَهُوَ عَلَى كُلِّ شَيْءٍ قَدِيرٌ (وَفِي لَفْظٍ:) تُسَبِّحُ اللَّهَ خَلْفَ كُلِّ صَلَاةٍ ثَلَاثًا وَثَلَاثِينَ، وَتَحْمَدُ ثَلَاثًا وَثَلَاثِينَ، وَتُكَبِّرُ أَرْبَعًا وَثَلَاثِينَ))
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that Sayyiduna Abu Dharr (may Allah be pleased with him) said: O Messenger of Allah! The wealthy people have taken all the reward, (in such a way that) they perform prayer, we also perform prayer, and they fast, we also fast, but they have extra wealth with which they give charity, and we do not have enough wealth so that we can also give charity? The Messenger of Allah (peace and blessings be upon him) said: Shall I not guide you to such words that when you act upon them, you will reach those who have surpassed, and no one will reach your (status) except the one who does the same as you do? I said: Why not, O Messenger of Allah! You (peace and blessings be upon him) said: After every prayer, you should say Allahu Akbar thirty-three times, Subhan Allah thirty-three times, and Alhamdulillah thirty-three times, and complete it with this supplication: La ilaha illallahu wahdahu la sharika lahu, lahul mulku wa lahul hamdu wa huwa ‘ala kulli shay’in qadeer. In another narration, it is: After every prayer, you should say Subhan Allah thirty-three times, Alhamdulillah thirty-three times, and Allahu Akbar thirty-four times.