Preserving the prayer times

عَنْ أُمِّ فَرْوَةَ، قَالَتْ سُئِلَ رَسُوْلُ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ أَيُّ الْأَعْمَالِ أَفْضَلُ قَالَ الصَّلَاةُ فِى أَوَّلِ وَقْتِھَا

Hazrat Umm Farwah relates, “The Holy Prophet^sa was asked, which action is best. He replied, ‘Observing prayer early in its appointed period.’”

(Sunan Abi Dawud, Kitab al-Salat, Hadith 426)