If you bought it as one ticket, then it will be sufficient, but it looks a bit tight. (Although I expect it's a common connection.) The airline will re-accommodate you if you miss the connection.
The minimum connect time in this circumstance is 1 hour 30 minutes.
Int-Int on SV at JED:
STANDARD.D/D...D/I...I/D...I/I.
ONLINE 1.15 2.30 2.30 1.30
OFFLINE 1.15 2.30 2.30 1.30
** OR * ARE ALL
SV-SV II 1.05 FLT 60 - FLT 301 YYZ - CAI
SV-SV II 2.10 FLT 60 - FLT 758 YYZ - DEL
SV-SV II 1.35 FLT 60 - FLT 768 YYZ - MAA
SV-SV II 2.30 FLT 34 - FLT 680
SV-SV II 1.35 FLT 164 - FLT 766
SV-SV II 2.00 FLT 681 - FLT 21
SV-SV II 2.00 FLT 681 - FLT 55
SV-SV II 1.10 FLT 829 - FLT 163
SV-SV II 1.25 FLT 829 - FLT 181
SV-SV II 3.00 TRM N - ** ALL - UNITED STATES
SV-SV II 1.30 ALL - UNITED STATES
**-SV II 3.00 ALL - UNITED STATES
**-SV II 3.00 TRM N - S
SV-** II 3.00 TRM S - N
Saudia operates from the South terminal. (During the Hajj season things may be a bit hectic but non-pilgrims still deplane into the South terminal before pilgrims are decanted into the special Hajj terminal.)