Top Iraqi Shi #39;ite Cleric Arrives in Al-Najaf 26 August 2004 -- Iraq #39;s top Shi #39;ite cleric, Grand Ayatollah Ali al-Sistani, arrived in the city of Al-Najaf today in a bid to end a weeks-long conflict between US forces and militiamen loyal to Shi #39;ite cleric Muqtada al-Sadr.