Musannaf Ibn Abi Shayba 1:1265

Hussain bin Ali narrated to us, from Za'idah, from 'Asim, from Shahr, from Abu Umamah, who said: "Whoever spends the night remembering [Allah] while in a state of purity, then wakes up during the night, he does not ask Allah for any need of the world or the Hereafter except that Allah gives it to him."