《资治通鉴·唐纪·唐纪二十六》
裴先在流放地北庭经商，又干一些打抱不平的侠义之事，他还常常派人到长安打听各种消息。
至徙所，殖货任侠，常遣客诇都下事。
Pei Xian did business in the place he was exiled to, Beiting, but also carried out some heroic deeds, and he often sent people to Chang'an to collect all sorts of information.