Surah Al-Mumtahanah (The Test of Faith), Verse 13

یٰۤاَیُّهَا الَّذِیْنَ اٰمَنُوْا لَا تَتَوَلَّوْا قَوْمًا غَضِبَ اللّٰهُ عَلَیْهِمْ قَدْ یَىِٕسُوْا مِنَ الْاٰخِرَةِ كَمَا یَىِٕسَ الْكُفَّارُ مِنْ اَصْحٰبِ الْقُبُوْرِ 

Yaaa ayyuhal lazeena amanoo laa tatawallaw qawman ghadibal laahu 'alaihim qad ya'isoo minal aakhirati kamaa ya'isal kuffaaru min as haabil quboor

“O ye who believe! Turn not (for friendship) to people on whom is the Wrath of Allah, of the Hereafter they are already in despair, just as the Unbelievers are in despair about those (buried) in graves.”

Quran 60:13 (Yusuf Ali Translation)