Ibn ‘Umar reported the Prophet as saying, “He who studies the Qur’ān is like the owner of tethered camels. If he pays attention to them he keeps hold of them, but if he lets them loose they go away." (Bukhārī and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب فضائل القرآن / 2189
Hadith Gradingالألبانی:صَحِيح | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (5031) و مسلم (226/ 789)»