The authenticity of the hadith that Allah and His angels send blessings upon the right sides of the rows

The questioner:
He says: Honorable Shaykh, may Allah grant you success, is this hadith authentic, the one that says Allah and His angels send blessings upon the right sides of the rows?

The Shaykh:
As far as I know, this is a good hadith. I do not know about its grade, meaning in terms of whether it is narrated by al-Bukhari or Muslim, but the hadith praises the right sides of the rows; Allah sends blessings, meaning He praises the right sides of the rows,

The questioner:
He asks: Is the second person, who is to the imam's right behind him, better than the first person, who is to his left?

The Shaykh:
if they are close to the imam. There is no doubt that the right side of the row is written [as better]. The closeness to the imam and being on the right side of the row combine for him. However, if the person on the imam's right is far from the imam and the person on his left is close to him, then the one on his left is better, because closeness to the imam is required.