Bukhari

Hadith Commentary:
➊
In these ahadith, the word "qabd" is used, which means:
to take something in the fist.
This fist is of the hand, and in this hadith, the right hand is explicitly mentioned as well.
In Sahih Muslim, there is further clarification; Abdullah ibn Umar radi Allahu anhu narrates that the Messenger of Allah sallallahu alayhi wa sallam said:
"On the Day of Resurrection, Allah will fold up the heavens and take them in His right hand and will say:
Today I am the King.
Where are the tyrants and the arrogant? Where are the proud and the haughty? Then He will fold up the earths and take them in His left hand and will say:
Today I am the King.
Where are the tyrants and the arrogant? Where are the proud and the haughty?" (Sahih Muslim, Sifat al-Munafiqin, Hadith: 7051(2788))
In another hadith it is stated:
Allah will take the heavens and the earths in His two hands and will say:
I am Allah.
...
The Messenger of Allah sallallahu alayhi wa sallam, while describing this scene, would close his fingers and sometimes open them.
I am the King.
The narrator says that the Messenger of Allah sallallahu alayhi wa sallam was narrating this hadith in such an enthusiastic manner that his pulpit appeared to move from below (to above), until I thought:
Will it (the pulpit) fall down with the Messenger of Allah sallallahu alayhi wa sallam? (Sahih Muslim, Sifat al-Munafiqin, Hadith: 7052(2788))

➋
In a lengthy hadith, the step-by-step creation of Adam alayhis salam is mentioned.
In it, it is stated that Allah closed the fists of both His hands and said to Adam alayhis salam:
Choose one of these two.
Adam alayhis salam chose the right fist.
Both hands of my Lord are right and full of goodness and blessing. Then Allah opened that fist, and in it was all the progeny of Adam alayhis salam.
(Jami' al-Tirmidhi, Tafsir al-Qur'an, Hadith: 3368)
In these ahadith, both hands of Allah are mentioned, and even the left hand is explicitly stated. However, in terms of goodness and blessing, both hands are alike and both are full of goodness and blessing.
The narration in which both hands of Allah are called "right" is in terms of goodness and blessing; the left hand of the creation is weaker than the right, but the left hand of Allah is not like that. Rather, in strength, power, and blessing, it is like the right hand.
The ahadith explicitly mention the spreading, opening, closing of the hands, and their being two—right and left. All these realities strongly refute the interpretation that what is meant is "power" or "favor."