The hospital said it treats thousands of people from Gaza every year.
The hospital said that the daughter of Haniyeh was admitted for a few days.
The daughter of Haniyeh was admitted for medical treatment that was deemed an emergency after she had suffered complications following a routine procedure, said sources who knew about the case.
Haniyeh, who is the father of 13, is the leader in Gaza of the Islamist militant group and one of its overall most senior figures serving as Khaled Meshaal’s deputy. Meshaal is living in exile.
Two sources – a Palestinian and a foreign diplomat – with knowledge of this case have declined to give the name of the daughter and due to privacy request, her condition has also not been released.
Like a number of officials in Hamas, Haniyeh spent war of seven weeks hiding. His home, which is in northern Gaza, was destroyed during an air strike by Israel.
An official from Israel said he was not able to discuss any specific admissions from Gaza.
However, he did say that in the majority of cases requests come from a doctor who is Palestinian to allow a patient over the border for treatment.
Haniyeh likely was not involved personally in the application of this daughter.
During this past summer’s war and since it concluded in the latter part of August, many dozens of patients originally from Gaza have been hospitalized in Israel where the technology and resources are must more advanced and complicated surgeries are much better.
Hamas is sworn to the destruction of Israel but voiced openness in a long-term truce and measured cooperation with Israel.
Media in Israel had reported that a granddaughter of Haniyeh was treated while in Israel last November, while in Jerusalem, his mother-in-law had sought treatment.