وَإِنّي خِفتُ المَوالِيَ مِن وَرائي وَكانَتِ امرَأَتي عاقِرًا فَهَب لي مِن لَدُنكَ وَلِيًّا

And indeed, I fear the successors after me, and my wife has been barren, so give me from Yourself an heir