20. Quran verse and the related hadith:

السلام عليكم ورحمة الله وبركاتة

بِسْمِ ٱللَّٰهِ ٱلرَّحْمَٰنِٱلرَّحِيمِ

[To the righteous people, Allāh will say], "O My servants, no fear will there be concerning you this Day (of Judgement), nor will you grieve, [You] who believed in Our verses and were Muslims. Enter Paradise, you and your kinds, delighted."  (43:68 - 70)

Allah's righteous servants believed Him by their hearts and they submitted inwardly and outwardly to the Laws of Allah. Al-Mu`tamir bin Sulayman narrated that his father said: “When the Day of Resurrection comes and the people are resurrected, there will be no one left who will not be filled with terror. Then a caller will cry out: "No fear will there be concerning you this Day, nor will you grieve" Then all of mankind will be filled with despair apart from the true believers, who will be waiting filled with hope.

Abu Huraira (RA) reported: The Prophet (SAW) narrated from his Lord Almighty that He said, “By My might, I will never combine in My servant two fears or two securities. If he feared Me in the world, I will make him safe on the Day of Resurrection. If he felt secure from Me in the world, I will make him fearful on the Day of Resurrection.” [Ṣaḥīḥ Ibn Ḥibbān, 640 - Authentic according to Al-Albani]

Due to their righteous deeds Allah, the Merciful told them to enter Paradise. For no one will be admitted to Paradise by virtue of their deeds alone; that will be by the Mercy and Grace of Allah. But the varying ranks and degrees of Paradise will be attained according to one's righteous deeds.

Narrated `Ayesha (RA): Allah's Messenger (SAW) said, "Do good deeds properly, sincerely and moderately and know that your deeds will not make you enter Paradise, and that the most beloved deed to Allah is the most regular and constant even if it were little." [Sahih al-Bukhari, 6464]. So do righteous deeds, Allah will keep His Promise.

الحمدلله