Al Jazeera is actually pretty legit. Obviously you gotta be aware because it is literally government funded but let this be the first of many times you will look up a claim made by Al Jazeera and find it to be true.

Btw, you could easily look this up. Why is this my job? I gave you quotes and names so you could look this shit up yourself.

The White House did not immediately respond to a request for further details about Biden’s remarks. Two senior administration officials said Biden was referring to reports from Israel about beheaded children and cited several media reports of beheadings.

NBC News has not confirmed those reports. IDF Spokesperson Maj. Doron Spielman told NBC News: “That specific report and that number I can’t confirm.”

A spokesperson for Israeli Prime Minister Benjamin Netanyahu said Wednesday that toddlers and babies were found in Kfar Aza, a kibbutz in southern Israel, with their “heads decapitated” after Hamas’ attack over the weekend, CNN reported.

https://www.nbcnews.com/politics/white-house/biden-deliver-remarks-roundtable-jewish-community-leaders-rcna119865

Almost verbatim what Al Jazeera said