(132) باب فِي مَنْ ضَمَّ يَتِيمًا
Sahl (b. Sa'd) reported the prophet (May peace be upon him) as saying; I and the one who takes the responsibility of an orphan will be in Paradise thus, and he joined his middle finger and forefinger.
Reference: Sunan Abi Dawud 5150
In-book reference: Book 43, Hadith 378
English translation: Book 42, Hadith 5131