Prayers during Salat

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In each ruku, before the zikr ‘سُبْحَانَ رَبِّيَ ٱلْعَظِيمِ وَبِحَمْدِهِ’, you may say this prayer

اللَّهُمَّ لَكَ رَكَعْتُ
O Allah, to You alone have I genuflected,
وَلَكَ اسْلَمْتُ
to You alone have I submitted,
وَبِكَ آمَنْتُ
in You have I believed,
وَعَلَيْكَ تَوَكَّلْتُ
and in You have I put my trust.
وَانْتَ رَبِّي
And You are my Lord.
خَشَعَ لَكَ سَمْعِي وَبَصَرِي
Revering to You are my hearing, my sight,
وَشَعْرِي وَبَشَرِي
my hair, my skin,
وَلَحْمِي وَدَمِي
my flesh, my blood,
وَمُخِّي وَعَصَبِي وَعِظَامِي
my brain, my nerve, my bones,
وَمَا اقَلَّتْهُ قَدَمَايَ
and whatever is borne by my two feet.
غَيْرَ مُسْتَنْكِفٍ وَلاَ مُسْتَكْبِرٍ وَلاَ مُسْتَحْسِرٍ
I am neither disdaining, nor arrogant, nor regretful.

In the second sajda of the last rakat, you may recite this dua

يا خَيْرَ الْمَسْئُولينَ
O You Who are the best from whom people seek their needs,
وَ يا خَيْرَ الْمُعْطينَ
and O You, Who are the best bestower of gifts!
اُرْزُقْنى وَارْزُقْ عِيالى مِنْ فَضْلِكَ
Give me and the members of my family sustenanance with Your grace.
فَاِنَّكَ ذُوالْفَضْلِ الْعَظيمِ
Undoubtedly You possess the greatest grace).