Ibn Umar (may Allah be pleased with them both) said: I prayed two rak'ahs with the Prophet (peace and blessings be upon him) before Zuhr and after it, and also prayed two rak'ahs each with Maghrib, Isha and Jumu'ah; but the rak'ahs of Maghrib, Isha and Jumu'ah he prayed at home.
(b) Sayyidah Hafsah (may Allah be pleased with her) said that the Prophet (peace and blessings be upon him) used to pray two light rak'ahs after dawn broke, before the Fajr prayer, and I would not go in to the Prophet (peace and blessings be upon him) at that time.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4475