Sorry for your loss.
To report this in TurboTax you should receive two separate tax slips - a T4RSP showing the withdrawal amount, and an RRSP Contribution slip showing a "designated transfer". You must first enter both these slips as one usually would, then specify the amount that is a designated transfer.
Here's some complete instructions for entering this transfer in TurboTax:
https://turbotax.community.intuit.ca/replies/2647835