Surat an-Nasr (The Ultimate Help)

"When the "Surat-An-Nasr", 'When comes the Help of Allah and the conquest,' had been revealed to the Prophet (ﷺ) he did not offer any prayer except that he said therein, "Subhanka Rabbana wa bihamdika; Allahumma ighfirli (I testify the Uniqueness of our Lord, and all the praises are for Him: O Allah, forgive me!")

Allah's Messenger (ﷺ) used to say very often in bowing and prostration (during his prayers), Subhanka Allahumma Rabbana wa bihamdika; Allahumma ighfirli," according to the order of the Qur'an.