بُلُوغُ الْمَرَامِ
Bulugh al-Maram 358
The Book of Prayer
وَلِلتِّرْمِذِيِّ نَحْوُهُ , وَزَادَ : { أَرْبَعًا قَبْلَ اَلظُّهْرِ وَرَكْعَتَيْنِ بَعْدَهَا , وَرَكْعَتَيْنِ بَعْدَ اَلْمَغْرِبِ , وَرَكْعَتَيْنِ بَعْدَ اَلْعِشَاءِ , وَرَكْعَتَيْنِ قَبْلَ صَلَاةِ اَلْفَجْرِ } [1]
at-Tirmidhi reported it similarly and added: "four Rak'at before Zuhr and two Rak'at after it and two Ra'kat after Maghrib and two after 'Isha' and two Rak'at before the Fajr prayer."
Sunnah.com reference: Book 2, Hadith 261