Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) would recite this supplication in the morning: "O Allah! With Your help we have entered the morning and with Your help we have entered the evening, and with Your help we live and with Your help we die, and to You is the resurrection." And in the evening he would recite this supplication: "O Allah! With Your help we have entered the evening and with Your help we have entered the morning, and by Your power we live and by Your power we die, and to You is the return."