>>/44592/
Not sure how it's called.
Note: when accepting the title, the newly appointed yokozuna makes a personalised vow (that he has prepared with oyakata).
> 不動心を心がけ、横綱の品格、力量の向上に努めます。
I trieded translating (google translate is wonky so I had to break down the grammar a bit)
> Keeping my heart steadfast, I will strive to improve my strength and dignity as a yokozuna.
Note: Hakuho was previously scolded for shamefur dispray and lack of yokozuna dignity on last two days, for overdoing the slaps vs Terunofuji but especially for stepping that far back with Shodai and avoiding full contact.