SHAFAQNA – It is narrated from Imam Hassan Askari (AS) who said: Whoever enters a place where others are gathered (meeting, party) and is satisfied with taking a seat (or to sit) at the back of the meeting, God and angels continuously send (Devine) blessings to him until he stands up . In another narration, Imam Askari (AS) said: Some signs of courtesy are; to greet (say Salaam) to anyone whom you pass and take a seat (or to sit) at the back of a meeting (or assembly, session, party) .
 Beharul Anwaar, Vol. 78, page 466, Hadith 12.
 As above, Vol. 75, Page 372, Hadith 9.