God has not listened to anything as He listens to a Prophet reciting the Qur'an in a sweet voice.  

النَّبِيَّ ﷺ قَالَ مَا أَذِنَ اللَّهُ لِشَىْءٍ مَا أَذِنَ لِنَبِيٍّ يَتَغَنَّى بِالْقُرْآنِ  

" As He listens to a Prophet reciting the Qur'an in a sweet voice."  

كَمَا يَأْذَنُ لِنَبِيٍّ يَتَغَنَّى بِالْقُرْآنِ  

Allah does not listen to anything, (more approvingly) as He listens to a Prophet reciting loudly the Qur'an in a sweet voice.  

أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ﷺ يَقُولُ مَا أَذِنَ اللَّهُ لِشَىْءٍ مَا أَذِنَ لِنَبِيٍّ حَسَنِ الصَّوْتِ يَتَغَنَّى بِالْقُرْآنِ يَجْهَرُ بِهِ  

" He heard it."  

وَقَالَ إِنَّ رَسُولَ اللَّهِ ﷺ وَلَمْ يَقُلْ سَمِعَ  

Allah has not heard anything (more pleasing) than listening to the Prophet reciting the Qur'an in a sweet loud voice.  

قَالَ رَسُولُ اللَّهِ ﷺ مَا أَذِنَ اللَّهُ لِشَىْءٍ كَأَذَنِهِ لِنَبِيٍّ يَتَغَنَّى بِالْقُرْآنِ يَجْهَرُ بِهِ  

This hadith has been narrated by another chain of transmitters but with a slight modification of words.  

عَنِ النَّبِيِّ ﷺ مِثْلَ حَدِيثِ يَحْيَى بْنِ أَبِي كَثِيرٍ غَيْرَ أَنَّ ابْنَ أَيُّوبَ قَالَ فِي رِوَايَتِهِ كَإِذْنِهِ  

'Abdullah b. Qais or al-Ash'ari has been gifted with a sweet melodious voice out of the voices of the family of David.  

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ عَبْدَ اللَّهِ بْنَ قَيْسٍ أَوِ الأَشْعَرِيَّ أُعْطِيَ مِزْمَارًا مِنْ مَزَامِيرِ آلِ دَاوُدَ  

If you were to see me, as I was listening to your recitation (of the Qur'an) yester-night (you would have felt delighted). You are in fact endowed with a sweet voice like that of David himself.  

قَالَ رَسُولُ اللَّهِ ﷺ لأَبِي مُوسَى لَوْ رَأَيْتَنِي وَأَنَا أَسْتَمِعُ لِقِرَاءَتِكَ الْبَارِحَةَ لَقَدْ أُوتِيتَ مِزْمَارًا مِنْ مَزَامِيرِ آلِ دَاوُدَ