What unifies the coordinated clauses in «كُلُوا وَاشْرَبُوا وَلَا تُسْرِفُوا»?

Supplementary Practice 1: Applied Analysis of Faṣl, Waṣl, Ījāz and Iṭnāb

• They are related directive speech acts
• All are ordinary factual reports
• The third is a literal repetition of the first two
• The first clause is omitted