Sunan Ibn Majah, Book 33, Hadith 24 (In-Book) ⓘ

It was narrated from `Abdullah bin `Abbas that the Messenger of Allah said: "Whoever raises three orphans, is like the one who spends his nights in prayer and fasts during the day, and goes out morning and evening drawing his sword in the cause of Allah. In Paradise, he and I will be brothers like these two sisters,'and he held up his forefinger and middle finger together."

حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا حَمَّادُ بْنُ عَبْدِ الرَّحْمَنِ الْكَلْبِيُّ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ الأَنْصَارِيُّ، عَنْ عَطَاءِ بْنِ أَبِي رَبَاحٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ ‏ "‏ مَنْ عَالَ ثَلاَثَةً مِنَ الأَيْتَامِ كَانَ كَمَنْ قَامَ لَيْلَهُ وَصَامَ نَهَارَهُ وَغَدَا وَرَاحَ شَاهِرًا سَيْفَهُ فِي سَبِيلِ اللَّهِ وَكُنْتُ أَنَا وَهُوَ فِي الْجَنَّةِ أَخَوَيْنِ كَهَاتَيْنِ أُخْتَانِ ‏" ‏ ‏.‏ وَأَلْصَقَ إِصْبَعَيْهِ السَّبَّابَةَ وَالْوُسْطَى ‏.‏