Surah Al-Munafiqun 63:1

إِذَا جَآءَكَ ٱلْمُنَـٰفِقُونَ قَالُوا۟ نَشْهَدُ إِنَّكَ لَرَسُولُ ٱللَّهِ ۗ وَٱللَّهُ يَعْلَمُ إِنَّكَ لَرَسُولُهُۥ وَٱللَّهُ يَشْهَدُ إِنَّ ٱلْمُنَـٰفِقِينَ لَكَـٰذِبُونَ

When the hypocrites come to you, [O Muḥammad], they say, "We testify that you are the Messenger of Allāh." And Allāh knows that you are His Messenger, and Allāh testifies that the hypocrites are liars.

Translation: Saheeh International

Tafsir

When the hypocrites come to you they say with their tongues in contradiction of what is in their hearts ‘We bear witness that you are indeed the Messenger of God.’ And God knows that you are indeed His Messenger and God bears witness He knows that the hypocrites truly are liars in what they conceal that which is …

Excerpt from Tafsir al-Jalalayn, commentary on 63:1, via Quran.com. The reader has the full commentary and 9 more tafsirs.