JQ delete multiple properties

Question

I have an object like this:

{
    "a" : 1,
    "b" : {
        "c" : {
            "c1" : "abc",
            "source" : "abcxyz"
        },
        "d" : {
            "d1" : "abcd",
            "source" : "abcxyz"
        },
        "e" : {
            "e1" : "abcde",
            "source" : "abcxyz"
        }
    }
}

My expectation is

{
    "a" : 1,
    "b" : {
        "c" : {
            "c1" : "abc"
        },
        "d" : {
            "d1" : "abcd"
        },
        "e" : {
            "e1" : "abcde"
        }
    }
}

I want to remove "source" properties. How can I do that without specifying keys "c", "d" or "e", because they are dynamic.

Answer 1

Here is another solution

del( .b[].source )