Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says: Whoever recites fifty verses in a night will not be counted among the heedless (al-ghafilin); whoever recites one hundred verses will be counted among the devoutly obedient (al-qanitin); whoever recites three hundred verses, a qintar will be recorded for him; and whoever recites seven hundred verses will be successful.
Al-Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators are thiqat (trustworthy).