It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that Sayyiduna Abu Dharr (may Allah be pleased with him) said: "O Messenger of Allah! The people of great wealth have taken away the reward. They pray as we pray and they fast as we fast, and they have surplus wealth (from which they give charity), while we have no wealth with which we could give charity."
The Messenger of Allah (peace and blessings be upon him) said: "O Abu Dharr! Shall I not teach you words through which you will catch up with those who have gone ahead of you, and no one after you will be able to reach you, except a person who does the like of your deed?"
He said: "Certainly, O Messenger of Allah!"
He (peace and blessings be upon him) said: "After every prayer, declare the greatness of Allah thirty-three times, praise Him thirty-three times and glorify Him thirty-three times, and conclude it with 'La ilaha illallahu wahdahu la sharika lah, lahul-mulku wa lahul-hamd, wa huwa 'ala kulli shay'in qadir' (There is no god worthy of worship except Allah, alone, without any partner; His is the dominion and His is all praise, and He has full power over everything)."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from al-Awza'i (may Allah have mercy on him) except Rishdin (may Allah have mercy on him)."
Hadith Referenceالمعجم الأوسط / باب الألف / 299
Hadith Takhrij«أخرجه البخاري فى «صحيحه» برقم: 843، 6329، ومسلم فى «صحيحه» برقم: 595، وابن خزيمة فى «صحيحه» برقم: 749، وابن حبان فى «صحيحه» برقم: 2014، 2015، والنسائي فى «السنن الكبرى» برقم: 9898، وأبو داود فى «سننه» برقم: 1504، والدارمي فى «مسنده» برقم: 1393، والبيهقي فى «السنن الكبرى» برقم: 3071، 3072، 3073، 3074، وأحمد فى «مسنده» برقم: 7363، وأبو يعلى فى «مسنده» برقم: 6587، والبزار فى «مسنده» برقم: 8953، 8954، 8960، 9105، والطبراني فى «الصغير» برقم: 802، والطبراني فى «الأوسط» برقم: 5310»