Wa-ʿalayhi an yatūfa wa-yasʿā
ʿAlayhi: prepositional predicate conveying obligation.
An yatūfa: an is a subordinating/subjunctive particle; yatūfa is subjunctive. The verbal noun clause functions as the postponed subject.
Wa-yasʿā: coordinated to yatūfa, with a non-apparent case ending on the final alif.
The construction makes both rites obligations in this context.