Reciting Qur'an loudly for the prayer for rain

It was narrated from 'Abbad bin Tamim from his paternal uncle that:

The Prophet ﷺ went out and prayed for rain, then he prayed two rak'ahs in which he recited loudly.

أَخْبَرَنَا مُحَمَّدُ بْنُ رَافِعٍ، قَالَ حَدَّثَنَا يَحْيَى بْنُ آدَمَ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ أَبِي ذِئْبٍ، عَنِ الزُّهْرِيِّ، عَنْ عَبَّادِ بْنِ تَمِيمٍ، عَنْ عَمِّهِ، أَنَّ النَّبِيَّ ﷺ خَرَجَ فَاسْتَسْقَى فَصَلَّى رَكْعَتَيْنِ جَهَرَ فِيهِمَا بِالْقِرَاءَةِ .