Wiching having arrived back from Rome, Svatopluk summoned Gorazd, Clement and Methodius's other disciples to submit to the papal directions. When they refused to do so, Svatopluk gave Wiching a free hand to take action against them. Some of them were first thrown into prison, and soon expelled from Moravia, while others, among them Naum, were sold as slaves. The expulsion of Methodius's disciples from Moravia signaled the end of the Slavonic liturgy in Central Europe. The exiles, however, subsequently found refuge in the First Bulgarian Empire where they were able to carry on their work. Saint Clement of Ochrid said: