ExpressionObject statusMain point
زَيْدٌ يُعْطِيUnstated and not necessarily recoverableZayd's giving character
زَيْدٌ يُعْطِي الدَّنَانِيرَThe object category is namedGiving dinars
زَيْدٌ يُعْطِي كُلَّ مَالِهِThe object's scope is explicitGiving all of his wealth
This contrast is not simply about sentence length. It shows a shift in the principal information asserted: from the agent's quality to the kind of thing given and then to the quantified extent of giving.