Abu Jamrah (may Allah have mercy on him) said: I said to Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both): "I recite the Qur'an quickly; I rush through it!" Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: "That I should recite Surah al-Baqarah slowly and distinctly is dearer to me than that I should rush through the whole Qur'an."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4714