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‘Uqba b. ‘Āmir reported God’s messenger as saying, “He who recites the Qur’ān loudly is like him who gives sadaqa openly, and he who recites the Qur’ān quietly is like him who gives sadaqa secretly.” Tirmidhī, Abū Dāwūd and Nasā’i transmitted it, Tirmidhī saying this is a hasan gharīb tradition.
Source: sunnah.com
Other translations
Arabic
وَعَنْ عُقْبَةَ بْنِ عَامِرٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «الْجَاهِرُ بِالْقُرْآنِ كالجاهر بِالصَّدَقَةِ ولامسر بِالْقُرْآنِ كَالْمُسِرِّ بِالصَّدَقَةِ» . رَوَاهُ التِّرْمِذِيُّ وَأَبُو دَاوُدَ وَالنَّسَائِيُّ وَقَالَ التِّرْمِذِيُّ: هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ
sunnah.com