Get First Day and Last Day of current month in SQL Server

I have to display report each month in mssql,

select * from purchase Invoice where convert(Date,p.p_Date) between '2023-01-01' and '2023-01-31'

this works fine.

Now my requirement is to display a general sql statement where i can display report from mssql without changing date each month.

I mean if it system date is February it should

where convert(Date,p.p_Date) between '2023-02-01' and '2023-02-28' and june

where convert(Date,p.p_Date) between '2023-02-01' and '2023-02-28' and june