You don't need to include the transfer - that's not new money going into the pension, but you do need to include any contributions into that pension during the tax years in question. I assume the final salary pension was frozen before 2020-21 otherwise you need the number for that as well for the years where you were still accruing benefits.
(based on your numbers there's no way you'll have a problem this year - you only need to start thinking about this if you're planning to do this every year. Note that after the current year allowance, you'll be using up the oldest (2020-21) left over allowance first)
Also, depending on whether this is being done via salary sacrifice (Net Pay) or post tax (Relief at source) might affect your cashflow. Relief at source will result in you paying an extra 20% tax on top of the pension contribution that you will only get back once either your tax code is adjusted or you do your tax return. Salary Sacrifice is much better in this respect.
There is two ways of getting money into your pension, one is before tax is deducted (this is called Net Pay) and another is after tax is deducted (called relief at source).
If you go the Net Pay route (or salary sacrifice route which achieves the same thing but technically you don't pay into your pension at all, your company does) then it's all very simple and nothing to worry about. Magic happens and there's nothing to do on your tax return at all (unless you exceed the pension annual allowance including carry forward) But if you go via the RAS route (approximately) this is what will happen:
(Let's assume that everything else stays identical to previous months and you receive 5000 pay each month after tax)
You'll get your regular pay (which after all the deductions is 5K)
You'll get paid 65K bonus before tax on your payslip
You'll get extra 26K tax deducted (probably - that's 40%)
So your pay will be 5+65-26 = 44K (I'm ignoring NI for simplicity)
But, to pay the entire 65K into your pension you need to pay in 52K. The pension company will then claim 13K from HMRC to make it up to the 65K.
But 52K is greater than 44K! So you have a problem - you'll need to find this extra 8K of money. (plus you won't have any money to live on that month either!)
Eventually you'll get 13K tax refunded from HMRC - so you'll be able to "repay" that 8K and the 5K normal salary. But in the short term you'll need to finance it.
Chances are, if this is a company pension, that it will be Net Pay (or salary sacrifice). But just in case it's not you need to think about this.