It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that I have memorized ten rak‘ahs from the Prophet (peace and blessings be upon him): two rak‘ahs before the Zuhr prayer and two rak‘ahs after it, and two rak‘ahs after Maghrib, and two rak‘ahs after ‘Isha, and two rak‘ahs before the Fajr prayer.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5417
Hadith Gradingحکم دارالسلام:إسناده صحيح ، خ :1180.