What is the authenticity of the Hadith: "O Allah, to You be praise, a good, blessed, and abundant praise, as befits the majesty of Your Face and the greatness of Your authority. O Allah, to You be praise until You are pleased, and to You be praise when You are pleased, and to You be praise after You are pleased"?

Al-Bukhari and others narrated from Rifaa'ah ibn Rafi' Az-Zurqi (may Allah be pleased with him) that the Prophet (peace be upon him) said, upon raising his head from bowing: "Allah hears those who praise Him." A man from behind him then said: "Our Lord, and to You be praise, abundant, good, blessed praise." When the Prophet finished (the prayer), he asked, "Who was the speaker?" The man replied, and the Prophet said: "I saw over thirty angels competing as to which of them would write it down first."

As for what Ibn Majah reported from Ibn Umar: "O Lord, to You be praise as befits the glory of Your Face and the greatness of Your Authority," it is a weak hadith.

As for the rest of the mentioned supplication: "O Allah, to You be praise for Your trials and Your actions...", it is also weak due to the presence of Nafi' Abu Hurmuz, who is abandoned in hadith, in its chain of narration.

Therefore, this supplication is a compilation from several hadiths, some of which are authentic and some are weak. However, the meaning in all of them is good, and it is legislated to praise Allah with it.