It is narrated from Sayyiduna Bara’ bin ‘Azib (may Allah be pleased with them) that the Noble Prophet (peace and blessings be upon him) said: “Adorn the Qur’an with your voices.”
Hadith Referenceسنن دارمي / من كتاب فضائل القرآن / 3532
Hadith Takhrijاس حدیث کی سند صحیح ہے۔ دیکھئے: [أبوداؤد 1468] ، [نسائي 1014] ، [ابن ماجه 1342] ، [أبويعلی 1687، 1706] ، [ابن حبان 749] ، [موارد الظمآن 660] ، [فضائل القرآن لأبي عبيد 160] ، [فضائل القرآن للرازي، ص: 190، وغيرهم]
Brief Explanation
(Commentary on Ahadith 3524 to 3532)
In this hadith, the meaning of adorning the Qur'an with one's voice is precisely that one should recite the Qur'an with a pleasant voice; it does not mean to produce sounds like music or singing. And Allah knows best.