Former Saudi Crown prince pledges allegiance to new Saudi Crown prince

A sight which may have been common in many parts of the world a century or two ago but which has become rare today. Former Saudi Crown prince Mohammed bin Nayef pledges allegiance to new Saudi crown prince Mohammed bin Salman (who is significantly younger to him), https://www.youtube.com/watch?v=MEaq0coZVF8, 25 seconds.

I think Mohammed bin Salman behaved in a very polite and dutiful way towards his elder, Mohammed bin Nayef, the former crown prince. Nice to see this peaceful change in crown prince in a powerful country which has the vital mosques of Mecca and Medina, which are cherished by billion plus Muslims worldwide.