# Add Prefix and page number in footnote citation

I am new to LaTeX and I have a few issues with citing. I want to have a footnote citation with the prefix "cf", then Names of the authors separated by commas, the year, and then page number with p. and a dot afterward. Example: cf. Kaiser, Eckenbusch,2003, p. 29.

I used \autocite{name_title-_year}, which works fine but does not give me the prefix and page number. using bibtex and the following packages:

\usepackage[style=authoryear,autocite=footnote]{biblatex}
\usepackage{cite}
\usepackage{hyperref}
\usepackage[style=authoryear,autocite=footnote]{biblatex}


I have already tried the things i found on this platform but they did not work:

\autocite{name_title-_year}\\
\citep{name_title-_year}\\
\autocite<⟨cf.⟩>{name_title-_year}
\autocite{[name_title-_year}\\
\autocite{[cf.][post]name_title-_year},
(\citealt[cf.][p.~15]{name_title-_year}


Do you have any idea how to solve this problem?

The block

\usepackage[style=authoryear,autocite=footnote]{biblatex}
\usepackage{cite}
\usepackage{hyperref}
\usepackage[style=authoryear,autocite=footnote]{biblatex}


should be changed to

\usepackage[style=authoryear,autocite=footnote]{biblatex}
\usepackage{hyperref}


Packages should only be loaded once, the package cite is incompatible with biblatex and hyperref should generally be loaded last.

With that sorted out, you can generate the desired citation output with

\autocite[Cf.][380]{sigfridsson}


that is to say \autocite[<prenote, e.g. 'cf.'>][<postnote>]{<entrykey>}.

If you want to get the commas as shown in the question, things will look like this

\documentclass[british]{article}
\usepackage[T1]{fontenc}
\usepackage{babel}
\usepackage{csquotes}

\usepackage[style=authoryear,autocite=footnote]{biblatex}
\usepackage{hyperref}