Beneficiary to sipp pension query

I am a beneficiary to a sipp pension. I received an amount and was taxed. Hmrc have now asked me to fill in a self assessment form. Which section or number should I include these details on the form ?

Hi Frances Betts,
If you click 'Ask HMRC online' and ask to speak with an adviser, you will be directed to SA webchat and we will check if a return is required and advise where to enter the details on the return if it is:
Self Assessment: general enquiries
Thank you.