Surah At-Tawbah — Ayah 124 (9:124)
وَإِذَا مَآ أُنزِلَتۡ سُورَةٞ فَمِنۡهُم مَّن يَقُولُ أَيُّكُمۡ زَادَتۡهُ هَٰذِهِۦٓ إِيمَٰنٗاۚ فَأَمَّا ٱلَّذِينَ ءَامَنُواْ فَزَادَتۡهُمۡ إِيمَٰنٗا وَهُمۡ يَسۡتَبۡشِرُونَ ١٢٤
English translation (Saheeh International)
And whenever a sūrah is revealed, there are among them [i.e., the hypocrites] those who say, "Which of you has this increased in faith?" As for those who believed, it has increased them in faith, while they are rejoicing.
Brief commentary
When Allah revealed a sūrah to the Messenger (peace and blessings be upon him), some of the hypocrites would ask by way of mocking and ridicule; 'Which one of you believers has had his faith increase?' As for those who had faith in Allah, and followed His Messenger, the revelation of the sūrah had indeed increased them in faith, and they were happy because of the benefit it contained for them in this world and for the Afterlife.