Mukhtasar Bukhari

Umm al-Mu'mineen Aisha Siddiqa (may Allah be pleased with her) says that the Noble Prophet (peace and blessings of Allah be upon him) used to say in his bowing and his prostrations: ((Subhanak Allahumma Rabbana wa bihamdika Allahumma ighfir li.)) "O Allah! I declare Your purity. O our Lord! I praise You. O Allah! Forgive me."