Shaqiq said: Abdullah bin Mas'ud (may Allah be pleased with him) used to fast little. When this was mentioned to him, he said: "When I fast, I become too weak to recite the Qur'an, and the recitation of the Qur'an is more beloved to me."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8836