Mukhtasar Bukhari

Narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him): The Prophet Muhammad (peace and blessings be upon him) said: Religion is very easy, and whoever makes religion hard upon himself will be overpowered by it. (As a result, he will not be able to bear the self-imposed hardship.) So, adopt the right and moderate way, and remain close (to one another), and rejoice (that you have been given such an easy religion), and gain strength by worshipping in the morning, after noon, and for a while at night.