Those whose lives the angels take while they are in a pious state saying (to them) "Salamun `Alaikum (peace be on you!). Enter Paradise because of what (good) you used to do (in the world)."
Allah tells us about their condition when death approaches them in a good state, i.e., free from Shirk, impurity and all evil. The angels greet them and give them the good news of Paradise, as Allah says:
إِنَّ الَّذِينَ قَالُواْ رَبُّنَا اللَّهُ ثُمَّ اسْتَقَـمُواْ تَتَنَزَّلُ عَلَيْهِمُ الْمَلَـيِكَةُ أَلاَّ تَخَافُواْ وَلاَ تَحْزَنُواْ وَأَبْشِرُواْ بِالْجَنَّةِ الَّتِى كُنتُمْ تُوعَدُونَ
نَحْنُ أَوْلِيَأوُكُمْ فِى الْحَيَوةِ الدُّنْيَا وَفِى الاٌّخِرَةِ وَلَكُمْ فِيهَا مَا تَشْتَهِى أَنفُسُكُمْ وَلَكُمْ فِيهَا مَا تَدَّعُونَ
نُزُلاً مِّنْ غَفُورٍ رَّحِيمٍ
Verily, those who say: "Our Lord is Allah (alone)," and then behave righteously, on them the angels will descend (at the time of their death) (saying): "Fear not, nor grieve! But receive the good news of Paradise as you have been promised! We have been your friends in the life of this world and are (so) in the Hereafter. In it you shall have (all) that your souls desire, and in it you shall have (all) that you ask for. An entertainment from (Allah), the Oft-Forgiving, Most Merciful." (41:30:32)
We have already referred to the Hadiths that have been reported on the taking of the soul of the believer and the soul of the disbeliever, when we discussed the Ayah,
يُثَبِّتُ اللَّهُ الَّذِينَ ءَامَنُواْ بِالْقَوْلِ الثَّابِتِ فِى الْحَيَوةِ الدُّنْيَا وَفِى الاٌّخِرَةِ وَيُضِلُّ اللَّهُ الظَّـلِمِينَ وَيَفْعَلُ اللَّهُ مَا يَشَأءُ
Allah will keep firm those who believe, with the word that stands firm in this world (i.e. they will keep on worshipping Allah Alone and none else), and in the Hereafter. And Allah will cause the wrongdoers to stray, and Allah does as He wills. (14:27)