Liaison office of Grand Ayatullah Sayyid Ali Al Sistani (L.M.H.L) in London, Europe, North and South America.
4. Performing tamam prayer.
"Distance should be calculated from the point where a person is considered, according to urf, a traveller; it is the end of the bounds of the town, which may be the borough or neighbourhood in some very big cities". Al-Minhaj, p.891.