Salam

Which is correct?
1- Allahumma Swalle Alaa Mohammad wa aale mohammad *wa ajjil farajahu*

2-Allahumma Swalle Alaa Mohammad wa aale mohammad *wa ajjil farajahum*

thanks

by

Walaikumussalam
Both are correct first one farajahu it is for singular
And farajahum this one is for plural as well for respect
Wassalam