BT Hor 10a(47) :בהדי ר׳ יהוש׳ הוה סולתא שלם פיתא דרבן גמליאל סמך אסולתא דר׳ יהושע‏ : PN had fine flour with him (on the boat). PN2's bread was finished, (and) he relied on PN's fine flour
See the entire entry for swlt n.m. fine flour