Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) led a prayer. When he said 'Sami'a Allahu liman hamidah' (Allah hears the one who praises Him), a man behind him said these words: "O Allah, our Lord, to You alone belongs every kind of praise, abundant, pure and blessed." When the Prophet (peace and blessings be upon him) completed the prayer, he asked: "Who is the one who said these words?" A man said, "O Messenger of Allah, it was I." The Prophet (peace and blessings be upon him) said: "I saw a number of angels take hold of these words and go upwards with them until they disappeared from my sight."
Imam al-Bazzar recorded this narration. Its chain contains a narrator whom I do not know. (Allamah al-Haythami says:) I say: Hadiths about what a person should say in ruku' (bowing) and sujud (prostration) will come later, after the chapter on prostration, if Allah wills.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2745