What action did the Prophet Muhammad (peace be upon him) love the most and what did he do when he heard the cock crow?
 Masruq is reported to have asked 'A'isha about the action (most pleasing to) the Messenger of Allah (may peace be upon him). She said:                      He (the Holy Prophet) loved (that action) which one keeps on doing regularly. I said (to 'A'isha): When did he pray (at night)? She replied: When he heard the cock crow, he got up and observed prayer.