Prayer (Kitab Al-Salat): Detailed Rules of Law about the Prayer during Journey

Dawud :: Book 4 : Hadith 1258

Narrated Aisha, Ummul Mu'minin:

When the Prophet (peace_be_upon_him) prayed the two rak'ahs of the dawn prayer, he would lie down if I was asleep; in case I was awake, he would talk to me.