ANSWER:

The first is a duaa to be said before salam during the prayer itself. 

The second one is thikr and not duaa

QUESTION: Sheikh a few days ago i asked a question about making dua after every fard prayer being biddah or not and you asked me to quote the hadiths, so the duas are: اللهُمَّ أَعِنِّي عَلَى ذِكْرِكَ وَشُكُرِكَ وَحُسْنِ عِبَادَتِكَ and أَسْتَغْفِرُ اللهَ (3) اللَّهُمَّ أَنْتَ السَّلَامُ وَمِنْكَ السَّلَامُ تَبَارَكْتَ يَا ذَا الْجَلَالِ وَالْإِكْرَامِ

Prayer, Supplications |