A promise to give B his car if A will go to Assuming that B has a better right, B Baguio within 5 days? Is it potestative? demanded all the proceeds of the rentals from Yes, such is potestative that is dependent upon the 2001 until 2005, is he entitled to the rentals? sole will of the debtor. It is because whether or not A will go to Baguio solely depend upon his will. Since, under Art. 1187 the effect of the happening of the condition retroacts to the constitution of the obligation, would presuppose that B may be entitled to the proceeds of the rents as if he was 101