Osama bin Laden, who coordinated the 9/11 attacks, did not publicly claim Israeli or Mossad involvement or foreknowledge of the attacks, and he was relatively transparent about his motivations focused on U.S. Foreign policy and its support for Israel.
Osama Bin Laden, the one who was chiefly responsible for coordinating the 9/11 attacks has never claimed Israel was implicated in 9/11 nor did he ever claim any Israeli or Mossad agents had foreknowledge. In addition, Osama Bin Laden has been largely transparent about his underlying motivations in the terrorist attacks.

FactVerify
Source: factverify.com
Key Evidence
The FBI and 9/11 Commission reports confirm bin Laden’s role in orchestrating the attacks without implicating Israel.
Bin Laden’s public statements focus on U.S. Policies rather than accusing Israel or Mossad of foreknowledge.
Scholarly analyses confirm his stated motivations centered on American actions in the Middle East.
en.wikipedia.orgen.wikipedia.orgOsama bin Laden
fbi.govfbi.govOsama bin Laden
What the Evidence Shows
The claim can be broken down into three parts: 1) Osama bin Laden was chiefly responsible for coordinating the 9/11 attacks; 2) he never claimed Israel or Mossad agents were implicated or had foreknowledge of the attacks; and 3) he was largely transparent about his motivations for the attacks. The first part is well-established by multiple authoritative sources including the FBI and the 9/11 Commission, confirming bin Laden's leadership role in al Qaeda and responsibility for 9/11.en.wikipedia.orgen.wikipedia.orgOsama bin Laden
fbi.govfbi.govOsama bin Laden
Regarding the second part, there is no credible evidence that bin Laden ever publicly accused Israel or Mossad of involvement or prior knowledge of 9/11. His statements and videos focus on grievances against U.S. Policies, particularly its support for Israel and actions in the Middle East, but do not allege Israeli complicity in the attacks.en.wikipedia.orgen.wikipedia.orgOsama bin Laden
pbs.orgpbs.orgWho Is Bin Laden? - Greetings, America. My Name Is Osama Bin Laden The third part about transparency is nuanced: while bin Laden articulated his motivations related to U.S. Foreign policy and perceived injustices against Muslims, some analysts note that his full strategic intentions and internal al Qaeda dynamics remain partially opaque.
Nonetheless, he did release multiple videos and statements explaining his rationale.pbs.orgpbs.orgWho Is Bin Laden? - Greetings, America. My Name Is Osama Bin Laden There are conspiracy theories alleging Israeli involvement in 9/11, but these are not supported by credible evidence or bin Laden’s own claims.
Therefore, the statement is mostly true but should acknowledge that transparency is relative and some aspects remain subject to interpretation.