Sahih Muslim
The Book on Salutations and Greetings (Kitab As-Salam)
Book Number: 026 / Hadith Number: 5414
Abu Huraira reported Allah's Messenger (may peace be upon him) as saying: When anyone amongst you stands up, and in the badltb transmitted on the authority of Abu 'Awina, the words are:" He who stands in his place and (goes away) and then comes back to it, he his the greatest right (to occupy that).