Fortress of the Muslim (Hisn al-Muslim)
حصن المسلم
(19) Chapter: While prostrating
(19) دعاء السجود
Hisn al-Muslim 42 
Subḥānaka Allāhumma Rabbanā wa biḥamdika Allāhumma ‘ghfir lī. Glory is to You, O Allah, our Lord, and praise is Yours. O Allah, forgive me. Reference: Al-Bukhari and Muslim, see invocation no. 34 above.
سُبْـحانَكَ اللّهُـمَّ رَبَّـنا وَبِحَـمْدِكَ ، اللّهُـمَّ اغْفِرْ لي
Reference : Hisn al-Muslim 42