Is a good ending an indication of entering Paradise and salvation from the torment of the grave, and is the death of a servant while fasting and praying Fajr in congregation considered a good ending?

The death of a Muslim while praying Fajr and fasting is considered a good ending, and it is among the deeds for which goodness and Paradise are hoped. One cannot definitively guarantee Paradise or Hell for anyone except for those about whom revelation has testified. However, goodness is hoped for those whose lives conclude with a righteous deed. The Prophet (peace be upon him) said: "When Allah wills good for His servant, He 'asalahu (sweetens him)," meaning He opens for him a righteous deed and then takes his soul upon it. In another hadith: "Whoever says 'There is no god but Allah,' seeking the countenance of Allah, and his life concludes with it, he will enter Paradise. And whoever fasts a day seeking the countenance of Allah, and his life concludes with it, he will enter Paradise. And whoever gives charity seeking the countenance of Allah, and his life concludes with it, he will enter Paradise." All of this indicates that for whoever's life concludes with good, and his last deed was a righteous one, that is a sign of Allah's wanting good for him.