(12) باب فِي شُكْرِ الْمَعْرُوفِ
Narrated Anas ibn Malik:
The Immigrants (Muhajirun) said: Messenger of Allah! the Helpers (Ansar) got the entire reward. He said: no, so long as you pray to Allah for them and praise them.
Reference: Sunan Abi Dawud 4812
In-book reference: Book 43, Hadith 40
English translation: Book 42, Hadith 4794