Sunan Abu Dawud
1333
Sahih+3

Narrated Uqbah ibn Amir al-Juhani: The Prophet (ﷺ) said: One who recites the Qur'an in a loud voice is like one who gives alms openly; and one who recites the Qur'an quietly is one who gives alms secretly

SahihAl-Albani
SahihMuhammad Muhyi Al-Din Abdul Hamid