They hypocrites are apprehensive lest a surah be revealed about them, informing (9:64)

﴿يَحْذَرُ الْمُنَافِقُونَ أَن تُنَزَّلَ عَلَيْهِمْ سُورَةٌ تُنَبِّئُهُم بِمَا فِي قُلُوبِهِمْ ۚ قُلِ اسْتَهْزِئُوا إِنَّ اللَّهَ مُخْرِجٌ مَّا تَحْذَرُونَ﴾
[ التوبة: 64]

9:64 They hypocrites are apprehensive lest a surah be revealed about them, informing them of what is in their hearts. Say, "Mock [as you wish]; indeed, Allah will expose that which you fear."

The hypocrites are afraid that Allah will reveal a sūrah to His Messenger that will inform the believers about the disbelief that they conceal.
Say, O Messenger: Continue, O hypocrites, mocking and poking fun.
Allah will unveil what you are afraid of by revealing a sūrah or by informing His Messenger about the truth of your case.

The hypocrites fear lest a Surah (chapter of the Quran) should be revealed about them, showing them what is in their hearts. Say: "(Go ahead and) mock! But certainly Allah will bring to light all that you fear."

phonetic Transliteration

Yahtharu almunafiqoona an tunazzala AAalayhim sooratun tunabbiohum bima fee quloobihim quli istahzioo inna Allaha mukhrijun ma tahtharoona

Abdullah Yusuf Ali - Translation

The Hypocrites are afraid lest a Sura should be sent down about them, showing them what is (really passing) in their hearts. Say: "Mock ye! But verily Allah will bring to light all that ye fear (should be revealed).

Safi-ur-Rahman al-Mubarakpuri

The hypocrites fear lest a Surah should be revealed about them, showing them what is in their hearts. Say: "(Go ahead and) mock! But certainly Allah will bring to light all that you fear."

Page 197 English transliteration