בראשית כח:ג פירוש: רש״י, ספורנו, Siftei Chakhamim וRav Hirsch

ואל שדי AND GOD ALMIGHTY —He who has a sufficiency of blessings שָׁדִּי for those who are blessed by Him, יברך אתך MAY HE BLESS THEE.

May the Almighty … bless you. With riches.

He who has sufficient blessings... Otherwise, why is this particular Name of Hashem mentioned here?