وَحَدَّثَنِي مَالِكٌ، عَنْ نُعَيْمِ بْنِ عَبْدِ اللَّهِ الْمُجْمِرِ، عَنْ عَلِيِّ بْنِ يَحْيَى الزُّرَقِيِّ، عَنْ أَبِيهِ، عَنْ رِفَاعَةَ بْنِ رَافِعٍ، أَنَّهُ قَالَ كُنَّا يَوْمًا نُصَلِّي وَرَاءَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَلَمَّا رَفَعَ رَسُولُ اللَّهِ صلى الله عليه وسلم رَأْسَهُ مِنَ الرَّكْعَةِ وَقَالَ ‏"‏ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ ‏"‏ ‏.‏ قَالَ رَجُلٌ وَرَاءَهُ رَبَّنَا وَلَكَ الْحَمْدُ حَمْدًا كَثِيرًا طَيِّبًا مُبَارَكًا فِيهِ ‏.‏ فَلَمَّا انْصَرَفَ رَسُولُ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ مَنِ الْمُتَكَلِّمُ آنِفًا ‏"‏ ‏.‏ فَقَالَ الرَّجُلُ أَنَا يَا رَسُولَ اللَّهِ ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ لَقَدْ رَأَيْتُ بِضْعَةً وَثَلاَثِينَ مَلَكًا يَبْتَدِرُونَهَا أَيُّهُمْ يَكْتُبُهُنَّ أَوَّلاً ‏"‏ ‏.‏

Malik related to me from Nuaym ibn Abdullah ibn al-Mujmir fromAIi ibn Yahya az-Zuraqi from his father that Rifaa ibn Rafi said, "Oneday we were praying behind the Messenger of Allah, may Allah bless himand grant him peace, when the Messenger of Allah, may Allah bless himand grant him peace, raised his head from ruku and said, 'Allah hearsthe one who praises Him' (Sami Allahu liman hamidah). A man behind himsaid, 'Our Lord, praise belongs to you - blessed, pure and abundantpraise' (Rabbana wa laka'l hamd, hamdan kathiran tayiban mubarakan fihi). Whenthe Messenger of Allah, may Allah bless him and grant him peace, hadfinished, he said, 'Who was it who spoke just now?' The man said, 'Idid, Messenger of Allah,' and the Messenger of Allah, may Allah blesshim and grant him peace, said, 'I saw more than thirty angels rushingto it to see which one of them would record it first.' " Translation Not Available

Book reference: Muwatta Imam Malik Book 15 Hadith 497
Web reference: Muwatta Imam Malik Book 15 Hadith 25