What is the ruling on preparing food and distributing it to friends and neighbors after completing the recitation of the Holy Quran?

The previous answer is sufficient and comprehensive. Concluding the recitation of the Qur'an (khatm al-Qur'an) is a virtuous act, and there is no harm in offering food to friends and neighbors after the conclusion, provided that it is not believed to be a Sunnah (definition) and the intention behind it is to fulfill what Islam encourages, such as feeding people. The questioner is urged to monitor their heart and be sincere to Allah Almighty so that ostentation (riya') does not spoil the reward of their deed, bearing in mind that there is no specific authentic supplication for concluding the Qur'an narrated from the Prophet, peace be upon him.