TrinityCore/TrinityCore — comment on commit 41488c9deb48f2e3356baca48d049ef28e308fce
File: src/server/scripts/Northrend/Naxxramas/boss_thaddius.cpp line 427
By Exodius:

@joschiwald is right. Thaddius should use http://www.wowhead.com/spell=28089
http://www.wowpedia.org/Thaddius#Thaddius