[There's a pause where better judgement, common sense, and wisdom tell him to say no.

And he is being a fool. A great one, greater than Rider.

... he didn't recognize that when he made the alliance with Luffy. He does now. Growth, perhaps.]

Last condition. You are to search for a better Master than me to sustain you while we're bonded. Once you find one, then it's time for them to take the reigns and our contract to end.

It's temporary. If all that's acceptable... then yes, I consent.