Musannaf Ibn Abi Shayba 22:172

Ghundar narrated to us, from Shu'bah, from Mansur, from Salim ibn Abi al-Ja'd, that Mu'adh said: "Whoever recites three hundred verses in a night is recorded among the devout (al-qanitin). And whoever recites one thousand verses, there is for him a qintar, the qirat of which is better than anything that is upon the earth."