Dalil
العربية

Quran Al-Hijr 15:55

قَالُواْ بَشَّرۡنَٰكَ بِٱلۡحَقِّ فَلَا تَكُن مِّنَ ٱلۡقَٰنِطِينَ

Translation

They said, "We have given you good tidings in truth, so do not be of the despairing."