In this mosque there is a tomb, which is believed to have been the tomb of the prophet Yunus (Peace be upon him). The mosque was built by ayubids in 1226 CE and is located in a town called Halhul, north of Hebron. It is built on Mount Nabi Yunus, the highest peak in the West Bank in Palestine.

Yunus (peace be upon him) is mentioned by name 4 times in the Quran.
Yunus (peace be upon him) also called the two other surnames “Dhun-nun” (Lord of the Fish) and “Sahibil Hot” (Companion of the Fish). The Quran says: “And (mention) Dhun-Nun, when he left in anger and decided that We had no power over him, but he shouted in the darkness, saying: there is no God but You. Be glorified! Lo! I was a villain. ” [Quran 11:87] “But wait for the decree of your Lord and do not resemble the Sahibil Hut, who cried out in fear.” [Quran 68:48]
When the Prophecy was given to Yunus (peace be upon him), he was ordered to go to Nineveh to preach the truth. Nineveh was located on the right bank of the Tigris River in ancient Assyria, across the river from the modern large city of Mosul, Iraq.
When Yunus (peace be upon him) withdrew from his people, he stayed at Jaffa in Palestine and boarded a ship to take him to Tirshish, where Tunisia is today. It was during this trip that he was thrown overboard and swallowed by fish.
READ MORE: History Of The Prophet Yunus /Jonah (PBUH)
Ibn Abu Hatim gave Hadith from Rasulullah (saw): When the Prophet Yunus (peace be upon him) was in the belly of the fish, it seemed to him that he should say: “O Allah, there is no God but You. Glory to Thee. Of course, I’m from the villains. ” [Quran 21: 8]
READ MORE: The Sweetness Of Faith —Sheikh Saalih ibn Houmaid
This prayer is under the throne. The angels said to Allah, “Oh, Lord! Weak famous voice from a strange land (discovered). ” He asked them: “Do you not recognize this? “,” No, O Lord. Who is he? “. He said:” My slave, Yunus. “
Yunus (peace be upon him) is also believed to be buried in Mosul, Iraq.
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Sources: Atlas of the Quran – Dr. Shauqi Abu Khalili, YouTube, Islam101.com, Wikipedia