He made the remarks in a gathering in Saar, about 16 kilometers (10 miles) west of the capital Manama, on Monday night.
Sheikh Salman was referring to the deployment of troops from Saudi Arabia, Kuwait, and the United Arab Emirates in Bahrain for crackdown on anti-regime protests.
Earlier on Monday, Bahraini regime forces raided the house of Sheikh Salman near the capital.
Al-Wefaq has organized many anti-government demonstrations in Bahrain since the beginning of the revolution in February 2011.
The Manama regime forces have been cracking down on the protests ever since.
Bahrainis hold King Hamad bin Isa Al Khalifa responsible for the death and arrest of protesters.
AGB/JR
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