'I asked Abu 'Abdillah [al-Sadiq] (AS), 'I have been tried by this science [astrology], so when I want something I look at the rising star, and if I see the rising star as evil, I desist from pursuing that thing, and if I see good in the rising star, I pursue the matter.' He asked me, 'Do you predict fate?' I said, 'Yes.' He said, 'Then burn your books.'