Rationally, if a statement reflects a true Islamic belief, mentioning it as a remembrance (dhikr) is permissible, provided it is not considered obligatory — and Shiʿa explicitly state that it is not part of the obligatory adhan.

The Qur’an commands:

> “O believers, remember Allah with abundant remembrance.” (Qur’an 33:41)

Affirming the wilayah of Allah’s chosen guardian is a form of remembering Allah, as obedience to Allah’s representative is obedience to Allah Himself.

Historically:

Sunni sources record that companions such as Salman al-Farsi would sometimes add explanatory phrases after the adhan.

Shiʿa similarly regard this phrase as a declaration of belief, not a mandatory component of the adhan.

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Conclusion

The Shiʿi method of prayer:

Is firmly rooted in the Qur’an

Is authentically based on the Prophet’s Sunnah

Is supported by reliable Sunni sources

And is neither innovation nor deviation