Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates this saying of the Prophet (peace and blessings be upon him): "Whoever recites these words:
'Alhamdulillahi qabla kulli ahadin, walhamdulillahi ba'da kulli ahadin, walhamdulillahi ala kulli hal'
"All praise belongs to Allah alone, who was before everyone; all praise belongs to Allah alone, who will be after everyone; and all praise belongs to Allah alone in every condition."
(The Prophet (peace and blessings be upon him) said:) That person will receive as much reward as the worship of one who has worshipped Allah Almighty."
Al-Tabarani recorded it in al-Mu'jam al-Awsat, and its chain contains narrators whom I do not know.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأذكار / 16895
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه الطبراني فى المعجم الأوسط (1013) ، أخرجه المعجم الأوسط للطبراني برقم: 1013»