فَقَدْ كَذَّبُوا۟ فَسَيَأْتِيهِمْ أَنۢبَـٰٓؤُا۟ مَا كَانُوا۟ بِهِۦ يَسْتَهْزِءُونَ

EnglishSaheeh International: For they have already denied, but there will come to them the news of that which they used to ridicule.
TamilJan Trust Foundation: திடனாக அவர்கள் (இவ்வேதத்தையும்) பொய்ப்பிக்க முற்படுகிறார்கள்; எனினும், அவர்கள் எதனை பரிகசித்துக் கொண்டிருக்கிறர்களோ, அதன் (உண்மையான) செய்திகள் அவர்களிடம் சீக்கிரமே வந்து சேரும்.
SinhalaRuwwad Center: එවිට සැබැවින් ම ඔවුහු බොරු කළෝ ය. එහෙයින් ඔවුහු කවර දෙයක් ගැන සරදම් කරමින් සිටියෝ ද එහි පුවත ඔවුන් වෙත මතු පැමිණෙනු ඇත.
UrduMaulana Muhammad Junagarhi: ان لوگوں نے جھٹلایا ہے اب ان کے پاس جلدی سے اس کی خبریں آجائیں گی جس کے ساتھ وه مسخرا پن کر رہے ہیں.
JapaneseRyoichi Mita: かれらは（それを）嘘であるとする。だが今にその愚弄することが，真実となって，かれらに降りかかるのである。
ChineseMa Jian: 他们确已否认真理，他们所嘲笑的事的结局，将降临他们。

Tafsir of 26:6

Which was revealed in Makkah بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيمِ In the Name of Allah, the Most Gracious, the Most Merciful. The Qur'an and the Disbelievers turning away; They could be compelled to believe if Allah so willed At the beginning of the explanation of Surat Al-Baqarah we discussed the letters which appear at the beginning of some Surahs. Allah's saying: تِلْكَ ءايَاتُ الْكِتَبِ الْمُبِينِ (These are the Ayat of the Book Mubin.) means, these are the verses of the Clear Qur'an, i.e. the clear and unambiguous Book which distinguishes between truth and falsehood, misguidance and guidance. لَعَلَّكَ بَخِعٌ نَّفْسَكَ (It may be that you are going Bakhi` yourself,) means, destroy yourself -- because of your keenness that they should be guided and your grief for them. أَلاَّ يَكُونُواْ مُؤْمِنِينَ (that they do not become believers.) Here Allah is consoling His Messenger for the lack of faith of those among the disbelievers who do not believe in him. This is like the Ayat: فَلاَ تَذْهَبْ نَفْسُكَ عَلَيْهِمْ حَسَرَتٍ (So destroy not yourself in sorrow for them) (35:8).…

Source: Ibn Kathir (Abridged)