´Anas bin Malik said:` “Whenever a matter would distress him, the Prophet (ﷺ) would say: ‘O Living, O Self-Sustaining Sustainer! In Your Mercy do I seek relief (Yā Ḥayyu yā Qayyūm, bi-raḥmatika astaghīth).’” And with this chain, that he said: “The Messenger of Allah (ﷺ) said: ‘Be constant with: “O Possessor of Majesty and Honor (Yā Dhal-Jalāli wal-Ikrām).’”
Shaykh Dr. Abdur Rahman Freywai
Explanation:
1: O Ever-Living, O Sustainer! By means of Your mercy, I seek Your help.
Note: 1. (In the chain of narration, Yazid ibn Aban al-Raqashi is a weak narrator, but due to corroborating narrations, this hadith is hasan li-ghayrihi (good due to supporting chains), see (al-Kalim al-Tayyib, no. 118)
Note: 2. (Due to corroborating narrations, this hadith is authentic, otherwise its narrator "Yazid ibn Aban al-Raqashi" is weak, see (Sahihah, no. 1536, and the following chain)
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 3524