The Messenger of Allah ﷺ said: ʿIn Paradise there are chambers the inside of which can be seen from the outside and the outside can be seen from the inside.ʿ A Bedouin said: O Messenger of Allah ﷺ, who are they for? He said: “For the one who speaks kind words, feeds people and prays to Allah at night when people are asleep.” (Using translation from Aḥmad 1338)
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «إِنَّ فِي الْجَنَّةِ غُرَفًا يُرَى ظَاهِرُهَا مِنْ بَاطِنِهَا وَبَاطِنُهَا مِنْ ظَاهِرِهَا» قَالَ أَبُو مَالِكٍ الْأَشْعَرِيُّ لِمَنْ هِيَ يَا رَسُولَ اللَّهِ؟ قَالَ «لِمَنْ أَطَابَ الْكَلَامَ وَأَطْعَمَ الطَّعَامَ وَبَاتَ قَائِمًا وَالنَّاسُ نِيَامٌ»