Sahih Muslim
The Book of Prayers (Kitab Al-Salat)
Book Number: 004 / Hadith Number: 1408
Jabir b. Abdullah reported that Banu Salama decided to shift near the mosque (as there were) some plots vacant. This (news) reached the Apostle of Allah (may peace be upon him), whereupon he said: O people of the Salama tribe, you better stay in your houses (where you are living), for your footsteps are recorded They said. We could not be more delighted even by shifting (near the mosque) as we were delighted (on hearing these words from the Messenger of Allah (may peace be upon him).