It is narrated from Mujahid that Sayyiduna Umar (may Allah be pleased with him) said: Beware! Refrain from analogy and philosophical speech in words and actions.
Hadith Referenceسنن دارمي / مقدمه / 203
Hadith Gradingتحقیق (حسین سلیم أسد الدارانی):إسناده ضعيف من أجل ليث وهو: ابن أبي سليم، [مكتبه الشامله نمبر: 203]
Hadith Takhrijاس روایت کی سند ضعیف ہے۔ حوالے کے لئے دیکھئے: [العلم لأبي خيثمه 65] ، [الفقيه والمتفقه 182/1] ، [الإحكام لابن حزم 1278/7]
Brief Explanation
(Commentary on Hadiths 199 to 203)
The meaning of "mukayalah" is that just as someone says something, you also begin to say the same; just as someone does a deed, you also begin to do the same.