41 : 48
وَضَلَّ عَنۡهُم مَّا كَانُواْ يَدۡعُونَ مِن قَبۡلُۖ وَظَنُّواْ مَا لَهُم مِّن مَّحِيصٖ
Whatever they used to supplicate before will vanish from them, and they will realize that they have no escape.
Ayah 48 of فُصِّلَت (41 : 48). This page carries the verse in the Uthmani script with a translation of its meaning, at a stable URL that can be cited on its own.
وَضَلَّ عَنۡهُم مَّا كَانُواْ يَدۡعُونَ مِن قَبۡلُۖ وَظَنُّواْ مَا لَهُم مِّن مَّحِيصٖ
Whatever they used to supplicate before will vanish from them, and they will realize that they have no escape.