Si Collection, Middle Volume. Radical: Divination (yáo). Page 690, Entry 19. Correct Character Dictionary (Zhengzitong) states this is an erroneous writing of the character pronounced zu. According to the dictionary Discussion of Writing and Explaining Characters (Shuowen Jiezi), the Comprehensive Collection of Characters (Yupian), and the Classified Dictionary (Leipian), this character is classified under the Radical: Ancestral Tablet (qie), and its form is derived from the character for ice (bing), not from the character for divination (yáo). The Comprehensive Collection of Characters (Zihui) states that this character is a common variant of the character pronounced zu. This is incorrect. The assertion in the Correct Character Dictionary (Zhengzitong) is correct.