What did the Prophet Muhammad (saw) teach regarding the Fajr and `Asr prayers?
 Narrated Abu Huraira:                     Allah's Apostle said, "Whoever could get one rak`a (of the Fajr prayer) before sunrise, he has got the (morning) prayer and whoever could get one rak`a of the `Asr prayer before sunset, he has got the (`Asr) prayer."