《资治通鉴·后唐纪·后唐纪四》
这一年，吴越王钱认为中原丧乱，朝廷的命令也通不下去，于是改年号为宝正。其后又和中原来往，也就避讳而不用这个年号了。
是岁，吴越王镠以中国丧乱，朝命不通，改元宝正；其后复通中国，乃讳而不称。
In this year, King Qian of Wuyue believed that the Central Plains was in chaos, and the court's orders could not be passed on, so he changed the reign title to Baoyin. Later, when he had dealings with the Central Plains, he avoided it and did not use this reign title.