hadith
4091
۞
The Prophet (SAWA) said, ‘Supplicate to Allah being convinced that he will answer you.
رسولُ اللهِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ): اُدْعُوا اللّهَ وأنتُم مُوقِنونَ بالإجابَةِ.