18. Al-Kahf (The Cave)

Surah: 18   Aya: 6

6. FalaAAallaka bakhiAAun nafsaka AAala atharihim in lam yu/minoo bihatha alhadeethi asafan
  

  Translation

6. Perhaps, you, would kill yourself (O Muhammad SAW) in grief, over their footsteps (for their turning away from you), because they believe not in this narration (the Qur'ân).