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.
عَنْ عَمَلِ رَسُولِ اللَّهِ ﷺ فَقَالَتْ كَانَ يُحِبُّ الدَّائِمَ قَالَ قُلْتُ أَىَّ حِينٍ كَانَ يُصَلِّي فَقَالَتْ كَانَ إِذَا سَمِعَ الصَّارِخَ قَامَ فَصَلَّى