Sayyiduna Abu Umamah (may Allah be pleased with him) said: I prayed with the Messenger of Allah (peace and blessings be upon him) for ten years, and his daily prayer (of voluntary prayers) was ten rak'ahs: two rak'ahs of Fajr, two rak'ahs before Zuhr, two rak'ahs after Maghrib, and two rak'ahs after Isha.
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7967