The Prophet ﷺ said, "Cling persistently to the words, 'O Possessor of Majesty and Honor.'"
حدثنا محمود بن غيلان حدثنا مؤمل عن حماد بن سلمة عن حميد
أن النبي ﷺ قال ألظوا بيا ذا الجلال والإكرام
[Sahih] Rawh bin Ubada narrated it from Hammad, from Thabit and Humayd, from Anas, with this wording. See Ilal al-Hadith by Ibn Abu Hatim, 2 (170), (192). It has a sahih corroborating narration in Nasai's Kubra, no. 11563, and Ahmad, 4/177. Hakim graded it sahih, 1/498, 499, and Dhahabi agreed with him. It has other corroborating narrations as well.