Shama-il Tirmidhi Chapter 43, Hadith Number 5 (301).

Ummi Haani Radiyallahu ‘Anha reports: “I heard Rasulullah Sallallahu ‘Alayhi Wasallam reciting (the Qur-aan in the Masjidul Haraam) at night, while I was on the rooftop of my house”.

This will mean that Sayyidina Rasulullah Sallallahu ‘Alayhi Wasallam recited very clearly and with an audible tone, that I could hear it on the rooftop of my house. Normally at night due to quietness the voice travels quite a distance. On the rooftop which is open it could be heard better, especially when the house is near.