Hadith #350
English (English)Indeed, there is an hour at night that whatever a Muslim bondsman asks Allah in it, from the goodness of this world and the hereafter, He will bestow it to him, and it occurs every night.
Reference: صحيح مسلم، كتاب صلاة المسافرين وقصرها، باب أفضل الصلاة طول القنوت، الحدیث 757