In “Hādhā dhikrun wa-inna li-l-muttaqīna la-ḥusna maʾāb”, what does hādhā dhikr first point to?

Final Chapter: Excellence of Opening, Barāʿat al-Istihlāl, Transition and Conclusion

• The rhyme of all later verses
• The poet’s name
• Only a broken plural
• The preceding reminder and narrative