Hadith 262

Bulugh al-Maram

Book 2: The Book of Prayer
وَلِلْخَمْسَةِ عَنْهَا : { مَنْ حَافَظَ عَلَى أَرْبَعٍ قَبْلَ اَلظُّهْرِ وَأَرْبَعٍ بَعْدَهَا حَرَّمَهُ اَللَّهُ عَلَى اَلنَّارِ } 1‏
And in the narration of al-Khamsah, by her [Umm Habibah (RA)]:

"Whoever prays regularly four Rak'at before and four Rak'at after the Zuhr prayer, Allah will forbid for him (from entering) the Hellfire."