It is narrated from Sayyiduna Zayd bin Arqam (may Allah be pleased with him) that "The Prophet of Allah (peace and blessings be upon him) used to make this supplication after the prayer: 'Allahumma rabbana wa rabba kulli shay', ana shahidun anna al-'ibada kullahum ikhwah. Allahumma rabbana wa rabba kulli shay', ij'alni mukhlisan laka wa ahli fi kulli sa'atin min al-dunya wal-akhirah, dhal-jalali wal-ikram, isma' wastajib. Allahu akbar, al-akbar, nur al-samawati wal-ard. Allahu akbar al-akbar. Hasbiyallahu wa ni'mal-wakil. Allahu akbar al-akbar' (O Allah, our Lord and Lord of everything! I bear witness that all the servants are brothers to one another. O Allah, our Lord and Lord of everything! Make me and my family sincere to You in every hour of this world and the Hereafter, O Possessor of Majesty and Grandeur and of Bounty and Honour! Hear (my plea) and grant it acceptance. Allah is the Greatest; He is the Greatest and the Light of the heavens and the earth. Allah is the Greatest; He is the Greatest. Allah is sufficient for me, and He is the best Disposer of affairs. Allah is the Greatest; He is the One of the greatest grandeur)."
Hadith Referenceمسند أبي يعلى الموصلي / بقية حديث زيد بن أرقم / 7216
Hadith Takhrij«قال سعيد بن محمد السناري: ضعيف» «أخرجه سنن أبي داود برقم: 1508، وأخرجه مسند أحمد برقم: 18807، وأخرجه المعجم الكبير للطبراني برقم: 5122، وأخرجه المعجم الأوسط للطبراني برقم: 3870، وأخرجه السنن الكبرى للنسائي برقم: 10154، مسند ابویعلیٰ ترقیم الاثری: 7181»