Addasaa kho bhagavaa addhaanamaggappa.tipanno aññatarasmi.m padese
mahanta.m aggikkhandha.m aaditta.m sampajjalita.m sajotibhuuta.m

addasaa = he saw (aorist of dassati)
kho = now, then
bhagavaa = the Blessed One (nominative)
addhaana = long, stretch, extent
magga = path
pa.tipanno = followed, reached, practiced, entered upon
(nominative)
aññatarasmi.m = in a certain (locative)
padese = location, region, district, spot (locative)
mahanta.m = large (accusative of mahaa, adjective in -ant)
aggikkhanda.m = aggi + khanda.m = fire-mass
aaditta.m = on fire, blazing, burning
sampajjalita.m = sa.m + pajjalita.m = in flames, ablaze
sajotibhuuta.m = sa + joti + bhuuta.m = ablaze, aglow

Derek.