Mishkat al-Masabih 7:223

Anas told that when anything caused God’s messenger anxiety he would say, “O Living One, O Eternal One, in Thy mercy I seek help.” Tirmidhi transmitted it, saying this is a gharib tradition which is not committed to memory.* * Laisa bi-mahfuz is used here. A tradition called mahfuz is one which is considered superior when compared with a shadhdh tradition (cf. p. xii).