No one despairs except disbelievers

اعوذ بالله من الشيطن الرجيم

Surah 12. Yusuf, Verse 87:

يَا بَنِيَّ اذْهَبُوا فَتَحَسَّسُوا مِن يُوسُفَ وَأَخِيهِ وَلَا تَيْأَسُوا مِن رَّوْحِ اللَّهِ إِنَّهُ لَا يَيْأَسُ مِن رَّوْحِ اللَّهِ إِلَّا الْقَوْمُ الْكَافِرُونَ

Translation:

"O my sons! Go you and enquire about Yusuf (Joseph) and his brother, and never give up hope of Allah's Mercy. Certainly no one despairs of Allah's Mercy, except the people who disbelieve."

Attitude of man when Allah withdraws His Mercy

اعوذ بالله من الشيطن الرجيم

Surah 11. Hud, Verse 9:

وَلَئِنْ أَذَقْنَا الْإِنسَانَ مِنَّا رَحْمَةً ثُمَّ نَزَعْنَاهَا مِنْهُ إِنَّهُ لَيَئُوسٌ كَفُورٌ

Translation:

And if We give man a taste of Mercy from Us, and then withdraw it from him, verily! He is despairing, ungrateful.