Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Whoever recites: 'La ilaha illallahu wahdahu la sharika lahu, lahul-mulku wa lahul-hamdu, wa huwa 'ala kulli shay'in qadir' (There is no deity except Allah; He alone is the deity, He has no partner; to Him alone belongs the dominion, to Him alone belongs all praise, and He has power over all things), (the Prophet, peace and blessings be upon him, says:) whoever recites these words two hundred times in a day, no one before him will surpass him and no one after him will reach him, except for someone who does a deed more excellent than his (that is, recites this phrase more times than he did)."
Ahmad and Tabarani recorded it, except that he recorded the words: "every day." The narrators of Ahmad are thiqat (trustworthy), and among the narrators of Tabarani are people whom I do not know.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأذكار / 16829
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه البزار فى المسند (3070) ، أخرجه مسند أحمد برقم: 6701»