Final answer:
No specific surah is prescribed for the 5th part of a Dua, and the correct surah cannot be determined without additional context. Surahs like Al-Kawthar, Al-Ikhlas, Al-Fatiha, and Al-Nas have their own significance in Islamic prayer practices.
Step-by-step explanation:
The surah we recite in the 5th part of our Dua could vary, as there is no specific surah prescribed universally for any particular part of a Dua (supplication). The question does not provide enough context to determine which specific Dua and its structure are being referred to. Duas can be a personal supplication, and individuals might choose to recite different surahs based on personal preference, situation, or tradition.
However, if we look at the options provided: Surah Al-Kawthar, Surah Al-Ikhlas, Surah Al-Fatiha, and Surah Al-Nas, each of these surahs has its own significance. Surah Al-Fatiha is typically recited at the start of the prayer, not the 5th part, so we can likely rule that out. Without additional context, it's not possible to give a definitive answer.
It's also important to note that the structure of the text within the Quran includes verses separated by triangles made up of 5 gold circles, indicating the end of each verse. The Kufi script relates to the style typical in Quranic manuscripts from the 9th-10th centuries. Each surah in the Quran has its own themes and contents, with a total of 6,236 verses split into 114 chapters, each taking a name relevant to its content.