Why are the two «أَمَدَّكُمْ» statements uncoordinated?

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

• There is no relation between the clauses
• The second clause is a command
• The second specifies a salient part of the first general statement
• Wāw is always prohibited