Sayyiduna Abu Hurayrah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "There is none of you whose deeds will save him." They said: "O Messenger of Allah, not even you?" He (peace and blessings be upon him) said: "No, not even me, unless Allah covers me with His mercy." He (peace and blessings be upon him) said: "Stay on the right course and be moderate," or he said: "Keep close (to it), and travel in the evening, and travel in the morning and part of the night; and be moderate, be moderate, and you will reach your goal."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4740