Is the recommendation to recite the Quran with sadness and measured pace valid?

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It is agreed upon by the scholars that reciting the Quran with sadness (Tahzin), measured pacing (Tartil), and beautification is recommended. Evidence is provided by the narration of Buraydah, where the Messenger of Allah (peace be upon him) stated, "Recite the Quran with sadness, for it was revealed with sadness."