(143) باب فِي إِفْشَاءِ السَّلاَمِ
Abu Hurairah reported the Messenger of Allah (May peace be upon him) as saying:
By him in whose hand my soul is, you will not enter Paradise until you believe, and you will not believe until you love one another: should I not guide you to something doing which you will love one another: spread out salutation among you.
Reference: Sunan Abi Dawud 5193
In-book reference: Book 43, Hadith 421
English translation: Book 42, Hadith 5174