豫卦九四
雷地豫 · 周易第 16 卦
九四：由豫，大有得。勿疑。朋盍簪。
小象传
象曰：由豫大有得，志大行也。
爻位
九四是阳爻居四位，阳居阴位为不当位；与初爻相应，一阴一阳为有应。
京房纳甲：庚午（火），六亲为子孙，为应爻。
此爻变
此爻独动，雷地豫变为坤为地（第 2 卦）。对应的易林诗：焦氏易林·豫之坤。
理雅各英译（1882）
The fourth NINE, undivided, shows him from whom the harmony and satisfaction come. Great is the success which he obtains. Let him not allow suspicions to enter his mind, and thus friends will gather around him.
'From him the harmony and satisfaction come; great is the success which he obtains:' - his aims take effect on a grand scale.
本卦
雷地豫（第 16 卦），卦辞：豫：利建侯行师。
经文依通行本，已与 Chinese Text Project（ctext.org）逐段比对。卦象是研读与自我反思的材料，不作吉凶断语，也不替代医疗、法律、财务等专业意见。