What is the role of «أَمَدَّكُمْ بِأَنْعَامٍ وَبَنِينَ» after the general statement?

Faṣl: Substitution, Quasi-Complete Connection and Quasi-Complete Disjunction

• Asking the addressee a question
• Specifying intended blessings from the general statement
• Negating the blessings
• Reporting a whisper