the Prophet said: Whoever takes in an orphan among the Muslims to raise, to feed him and give him drink, Allah admits him into Paradise without a doubt, unless he has done a sin for which he is not forgiven."
أَنَّ النَّبِيَّ ﷺ قَالَ مَنْ قَبَضَ يَتِيمًا بَيْنَ الْمُسْلِمِينَ إِلَى طَعَامِهِ وَشَرَابِهِ أَدْخَلَهُ اللَّهُ الْجَنَّةَ الْبَتَّةَ إِلاَّ أَنْ يَعْمَلَ ذَنْبًا لاَ يُغْفَرُ لَهُ قَالَ وَفِي الْبَابِ عَنْ مُرَّةَ الْفِهْرِيِّ وَأَبِي هُرَيْرَةَ وَأَبِي أُمَامَةَ وَسَهْلِ بْنِ سَعْدٍ