Salamah bin Kuhayl said at the end (of his narration): "If its owner comes, give it to him; otherwise, it takes the course of your own property."
In one narration the wording is: "Otherwise, make use of it"; another wording is: "Benefit from it"; another wording is: "Then meet your need with it"; and another is: "Make use of it." All of them come back to one meaning.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب اللقطة / 12056