57. Before salam #3
The Messenger of Allah (ﷺ) heard a man saying -
اَللَّهُمَّ إِنِّي أَسْأَلُكَ بِأَنِّي أَشْهَدُ أَنَّكَ اَنْتَ اللَّهُ لَا إِلَهَ إِلَّا أَنْتَ الْأَحَدُ الصَّمَدُ الَّذِيْ لَمْ يَلِدْ وَلَمْ يُوْلَدْ وَلَمْ يَكُنْ لَهُ كُفُوًا أَحَدٌ
Allaahumma 'innee 'as'aluka bi 'anni 'ash-hadu 'annaka 'AntAllahu laa 'ilaaha 'illaa 'Antal-'Ahadus-Samadul-ladhee lam yalid wa lam yoolad wa lam yakun lahu kufuwan 'Ahad
O Allah, I ask You, by the fact that I bear witness that You are Allah. There is none worthy of worship but You, the Only God, Independent of creation, who was not begotten and begets not, and none is equal to Him.
The Prophet (ﷺ) said: 'By the One in Whose Hand is my soul, he called upon Allah by His greatest Name, which, if He is called by it, He responds, and if He is asked by it, He gives.'
Related Duas:
While reciting Surah Fatiha behind the Imam
Dua at the last part of the night
About Lailatul Qadr
Reciting specific dua after ablution
Dua in the state of prostration
Time to accept prayers (during Adhan, Iqamah, Raining and War)
After awaking at night, reciting some specific duas
Time when duas are accepted #2
Dua at the begining of the prayer #1
If the Amin of any one coincides with that of the angels
Dua after getting up from the rukoo
Dua after every obligatory prayer