The New York Times reported that Hamas asked for Iranian and Lebanese Hezbollah participation in the October 7 attacks in July 2023, underscoring the coordination between Hamas and the wider Axis of Resistance before the operation.[11] Hamas initially sought to attack in Fall 2022, according to minutes from Hamas meetings that the IDF captured in the central Gaza Strip in late January 2024. Hamas delayed the planned Fall 2022 attack to convince Iran and Hezbollah to participate. Hamas Political Bureau member and current Deputy Hamas leader Khalil al Hayya met with the head of the IRGC Quds Force Palestinian Affairs Office and a senior Hezbollah official in July 2023. Hayya specifically requested Hezbollah and Iran target sensitive Israeli sites as the Hamas attack began. The IRGC Quds Force official reportedly told Hayya that Iran and Hezbollah supported the attack in principle but needed time to “prepare the environment.”
This meeting demonstrates that Iran had strategic foreknowledge of the October 7 attacks, but it remains unclear if Iran or Hezbollah had tactical knowledge of the attack's exact timing. Iran and Hezbollah's hesitation may reflect the reality that Iran and Hezbollah would have needed to prepare their own operational plans to support Hamas’ plans successfully, which could take many months. Both Iran and Hezbollah supported the theory of ground attacks into Israel from Lebanon and the Gaza Strip, and Hezbollah had prepared to undertake such an attack if necessary.[12]
https://www.understandingwar.org/backgrounder/iran-update-october-12-2024
Hamas leader Yahya Sinwar negotiated with Iran over financial support for a larger-scale attack on Israel in 2021, underscoring the coordination between Hamas and the wider Axis of Resistance before the October 7 attacks.[18] The Washington Post reported that Sinwar requested funding and military support from numerous senior Iranian officials, including Supreme Leader Ali Khamenei and Islamic Revolutionary Guards Corps (IRGC) Quds Force Commander Brigadier General Esmail Ghaani, in order to “destroy Israel completely in two years.”[19] Iran reportedly agreed to allocate $10 million to the al Qassem Brigades, and several weeks later, Sinwar requested an additional $500 million to be allocated in monthly dividends over two years.[20] Iran's financial support of Hamas and the al Qassem Brigades has been well-established and Western officials have previously estimated that Iran provides Hamas with around $100 million in annual funding for Hamas’ military activities.[21] This funding was instrumental for Hamas to be able to marshal the capabilities required to carry out the October 7 attacks.[22] Sinwar’s direct coordination and communication with senior Iranian officials, along with meetings between Hamas and Iranian officials in July 2023, underscore that Iran had strategic foreknowledge of the October 7 attacks.[23] It remains unclear if Iran had tactical knowledge of the attack's exact timing.
https://www.understandingwar.org/backgrounder/iran-update-october-13-2024