Thanks to cinemablend:
I did say [to Jonny], 'Well, I’d prefer you didn’t do it but you’ve got a kid to feed, a nice house in LA and a wife to keep in good clothes.' When you get used to a certain standard of living and they waft a paycheck at you, what are you going to do?
Cumberbatch reached out to THR to clarify his remarks, saying that he was misquoted. Here's his full statement:
I am both bemused and upset at this misquote. I never said that Johnny took the job for the paycheck nor did I ask him not to do it. What I said is I would have preferred not to be in the situation where we will again be compared because we are friends. I know for a fact his motivations were to do with the quality of the script and the challenges of this exceptional role.
It is baffling because I have only been supportive of an incredibly talented actor who I am proud to call a friend taking a job I know he is going to enjoy immensely and be wonderful in.
Over 70 actors have played this exceptional character before us. To say that there can be only one Holmes would be ludicrous. We're both thrilled to get the opportunity to play him in a modern context. The world of Sherlock Holmes and the world that we live in now is big enough to take more than one interpretation. As a genuine Sherlock Holmes fan I am greatly looking forward to his series.
