Abu Hurairah (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) said, "Follow the Right Path of Faith strictly, and be steadfast; and keep in mind that none of you can achieve salvation through his (good) actions." Someone asked, "Not even you, O Messenger of Allah?" He (ﷺ) said, "Not even me, unless Allah grants me His Mercy and Grace".[Muslim].
Arabic/English book reference: Book 1, Hadith 86