﴿ وَمَن فِى ٱلْأَرْضِ جَمِيعًۭا ثُمَّ يُنجِيهِ ﴾

“and of whoever [else] lives on earth, all of them - so that he could but save himself.”

and all who are on earth if it that ransom might then deliver him thumma yunjīhi is a supplement to yaftadī ‘to ransom himself’.