1 verse has
“fullest”
in Edition Clear Qur'an by Talal Itani / An-Najm (The Star)
53:41Then he will be rewarded for it the fullest reward.
Support Ayat Al Quran
Those who spend their wealth by night and day, privately and publicly, will receive their reward from their Lord. They have nothing to fear, nor shall they grieve.
The Holy Quran · Al-Baqara (The Cow) · 2:274