The transitional government leader Mustafa Abdul-Jalil set out a vision for the post-Gadhafi future with an Islamist tint, saying that Islamic Sharia law would be the "basic source" of legislation in the country and that existing laws that contradict the teachings of Islam would be nullified. In a gesture that showed his own piety, he urged Libyans not to express their joy by firing in the air, but rather to chant "Allahu Akbar," or God is Great. He then stepped aside and knelt to offer a brief prayer of thanks.