The Book of Prayers (Kitab Al-Salat) 
Muslim :: Book 4 : Hadith 1571
'A'isha reported that the Apostle (may peace be upon him) was not so much particular about observing supererogatory rak'ahs as in case of the two rak'ahs of the dawn prayer.
The Book of Prayers (Kitab Al-Salat)
Muslim :: Book 4 : Hadith 1571
'A'isha reported that the Apostle (may peace be upon him) was not so much particular about observing supererogatory rak'ahs as in case of the two rak'ahs of the dawn prayer.