Musannaf Ibn Abi Shaybah

Hazrat Abu Darda narrates that the Messenger of Allah, peace and blessings be upon him, said: Whoever recites one hundred verses of the Qur'an at night will not be written among the heedless; and whoever recites two hundred verses will be written among the obedient; and whoever recites from five hundred up to one thousand verses will wake up in such a state that a great reward will be written in his record of deeds, the measure of which is that one qirat will be like a huge mound.