He compared the bad influence of such ones to that of leaven that causes a whole lump of dough to rise. “ A little leaven ferments the whole batch of dough, ” he noted.
فشبَّه تأثيرهم الرديء بتأثير الخميرة ،‏ قائلا لهم :‏ « خميرة صغيرة تخمِّر العجين كله » .‏