قال محمد بن الحسن هذا الخبر يدل على ان التسليم ليس بفرض لانه لو كان فرضا لكان يجب عليه اعادة الصلاة فأما ما رواه
Muhammad ibn Al-Hasan said: “This narration indicates that the taslim is not an obligation, because if it were an obligation, it would be necessary for him to repeat the prayer.” As for what he narrated: